{"id":220414,"date":"2024-12-10T00:30:18","date_gmt":"2024-12-10T00:30:18","guid":{"rendered":"https:\/\/www.solinst.com\/405-reverse-head-profile\/"},"modified":"2026-05-07T22:36:15","modified_gmt":"2026-05-07T22:36:15","slug":"405-reverse-head-profile","status":"publish","type":"page","link":"https:\/\/www.solinst.com\/en-gb\/products\/solinst-flute\/405-reverse-head-profile\/","title":{"rendered":"405 Reverse Head Profile"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; fullwidth=&#8221;on&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_fullwidth_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2026\/01\/405-solinst-flute-reverse-head-profile-1920&#215;500-1.webp&#8221; alt=&#8221;solinst flute reverse head profile&#8221; title_text=&#8221;Solinst Flute Reverse Head Profile&#8221; src_tablet=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2026\/01\/405-solinst-flute-reverse-head-profile-965&#215;500-1.webp&#8221; src_phone=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2026\/01\/405-solinst-flute-reverse-head-profile-965&#215;500-1.webp&#8221; src_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_fullwidth_image][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;H1 and breadcrumbs&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;792ca5bd-0808-46bd-9ce7-3bcb8e74f4d3&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;4b28f470-0d73-4e9d-b92d-e6f41f2cea24&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; header_font=&#8221;|700|||||||&#8221; header_font_size=&#8221;36px&#8221; custom_margin=&#8221;||5px|||&#8221; header_text_align_tablet=&#8221;&#8221; header_text_align_phone=&#8221;&#8221; header_text_align_last_edited=&#8221;on|desktop&#8221; header_font_size_tablet=&#8221;30px&#8221; header_font_size_phone=&#8221;26px&#8221; header_font_size_last_edited=&#8221;on|phone&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h1 role=\"heading\" aria-level=\"2\" data-uw-rm-heading=\"level\">Model 405 Reverse Head Profile<\/h1>\n<p>[\/et_pb_text][dsm_breadcrumbs disabled_on=&#8221;on|off|off&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; home_icon_text_color=&#8221;#d6d6d6&#8243; global_colors_info=&#8221;{}&#8221;][\/dsm_breadcrumbs][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;Mobile-Only Nav with Offset&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;4759a92f-4b27-4854-bb2c-299854634e93&#8243; sticky_offset_top=&#8221;127px&#8221; global_module=&#8221;5745&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; width=&#8221;90%&#8221; custom_margin=&#8221;0px||||false|false&#8221; custom_padding=&#8221;0px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_code admin_label=&#8221;405 Mobile Nav &#8211; Select Dropdown&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_css_free_form=&#8221;select {||||      font-size: 1em; \/* Adjust font size *\/||      padding: 10px;   \/* Optional: Increase padding for better spacing *\/||      width: 100%;||      box-sizing: border-box;\/* Optional: Adjust width to fit the container *\/||      height: 50px;||}||||    \/* Style for dropdown options (fallback if needed) *\/||select option {||      font-size: 1.2em; \/* Ensures option text matches select styling *\/||      width: 100%;||    }&#8221; global_colors_info=&#8221;{}&#8221;]<select name=\"dropdown\" onchange=\"location = this.value;\"><!-- [et_pb_line_break_holder] --><option value=\"\">405 Solinst Flute Menu<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-flute\/\">405 Water Flute Main Page<\/option><!-- [et_pb_line_break_holder] -->    <!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-flute\/405-water-flute\/\">405 Water Flute<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-flute\/405-water-flute\/datasheet\/\">-Datasheet<\/option><!-- 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value=\"https:\/\/www.solinst.com\/instruments\/solinst-flute\/405-fact-flute-activated-carbon-technique\/fact-faq-frequently-asked-questions\/\">-FAQ<\/option><!-- [et_pb_line_break_holder] -->    <!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-flute\/transmissivity-profiling\/\">405 Transmissivity Profiling<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-flute\/transmissivity-profiling\/datasheet\/\">-Datasheet<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-flute\/transmissivity-profiling\/transmissivity-profiling-faq\/\">-FAQ<\/option><!-- [et_pb_line_break_holder] -->    <!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-flute\/reverse-head-profile\/\">405 Reverse Head Profile<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-flute\/reverse-head-profile\/datasheet\/\">-Datasheet<\/option><!-- [et_pb_line_break_holder] -->\t<!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-flute\/general-quote-form\/\">Get a Quote<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/Forms\/sol.php\">Send Me Info<\/option><!-- [et_pb_line_break_holder] --><option value=\"https:\/\/www.solinst.com\/instruments\/solinst-flute\/distributors\/\">Solinst Flute Distributors<\/option><!-- [et_pb_line_break_holder] --><\/select>[\/et_pb_code][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; specialty=&#8221;on&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;5a5bca26-a9a5-4e6c-8fca-d64da3bdcd40&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_menu menu_id=&#8221;56&#8243; admin_label=&#8221;405 Main Nav&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;242faa89-ac4f-4e46-90fe-505e8c1eab79&#8243; global_module=&#8221;5710&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_menu][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;||||false|false&#8221; global_module=&#8221;46957&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.solinst.com\/wp-content\/uploads\/2025\/01\/solinst-flute-logo-600w.webp\" width=\"278\" height=\"46\" alt=\"solinst flute\" class=\"wp-image-31951 alignnone size-full\" \/><\/strong><strong><\/strong><\/p>\n<p><strong>Solinst Flute<\/strong><\/p>\n<p>1091 NM-68<br \/>Alcaide, NM, USA<br \/>87511<\/p>\n<p>Tel: +1 505-852-0128<br \/>email:<a href=\"mailto:flute@solinst.com\"> flute@solinst.com<\/a><\/p>\n<p>[\/et_pb_text][et_pb_slider disabled_on=&#8221;on|on|off&#8221; _builder_version=&#8221;4.27.6&#8243; _module_preset=&#8221;default&#8221; display_conditions=&#8221;W10=&#8221; link_option_url=&#8221;https:\/\/www.solinst.com\/instruments\/dataloggers-and-telemetry-systems\/3001-levelogger\/?utm_source=solinst&#038;utm_medium=WC-global-sidebar-position1&#038;utm_campaign=3001&#8243; global_module=&#8221;53188&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_slide button_text=&#8221;Levelogger&#8221; button_link=&#8221;https:\/\/www.solinst.com\/en-gb\/data-loggers-and-telemetry-systems\/3001-levelogger\/?utm_source=solinst&amp;utm_medium=WC-global-sidebar-position1&amp;utm_campaign=3001&#8243; use_bg_overlay=&#8221;on&#8221; bg_overlay_color=&#8221;rgba(224,97,0,0.58)&#8221; button_text_tablet=&#8221;&#8221; button_text_phone=&#8221;&#8221; button_text_last_edited=&#8221;on|desktop&#8221; content_tablet=&#8221;&#8221; content_phone=&#8221;&#8221; content_last_edited=&#8221;on|desktop&#8221; _builder_version=&#8221;4.27.6&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#F07C00&#8243; background_enable_color=&#8221;on&#8221; background_image=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2025\/01\/3001-absolute-water-level-datalogging.webp&#8221; background_enable_image=&#8221;on&#8221; background_position=&#8221;top_center&#8221; custom_button=&#8221;on&#8221; button_bg_color=&#8221;#f58025&#8243; button_border_width=&#8221;2px&#8221; button_border_color=&#8221;#ffffff&#8221; button_border_radius=&#8221;20px&#8221; button_font=&#8221;|600|||||||&#8221; background_last_edited=&#8221;on|desktop&#8221; global_colors_info=&#8221;{}&#8221; button_border_width__hover_enabled=&#8221;on|hover&#8221; button_border_width__hover=&#8221;2px&#8221; sticky_transition=&#8221;on&#8221;]<\/p>\n<h2><strong><\/strong><\/h2>\n<h2><strong><\/strong><\/h2>\n<h2><strong><\/strong><\/h2>\n<p>&nbsp;<\/p>\n<h2>Accurate Water Level Data<\/h2>\n<p><b>Reliable Instruments that Last<\/b><\/p>\n<p>[\/et_pb_slide][\/et_pb_slider][et_pb_slider disabled_on=&#8221;on|on|off&#8221; _builder_version=&#8221;4.27.6&#8243; _module_preset=&#8221;default&#8221; link_option_url=&#8221;https:\/\/www.solinst.com\/careers\/?utm_source=solinst&#038;utm_medium=WC-global-sidebar-position2&#038;utm_campaign=SUK-regional-sales-manager&#8221; global_module=&#8221;53561&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_slide heading=&#8221;Solinst UK Is Hiring!&#8221; button_text=&#8221;Regional Sales Manager&#8221; button_link=&#8221;https:\/\/www.solinst.com\/careers\/?utm_source=solinst&amp;utm_medium=WC-global-sidebar-position2&amp;utm_campaign=SUK-regional-sales-manager&#8221; _builder_version=&#8221;4.27.6&#8243; _module_preset=&#8221;default&#8221; header_text_color=&#8221;#000000&#8243; header_font_size=&#8221;38px&#8221; background_color=&#8221;RGBA(255,255,255,0)&#8221; background_enable_color=&#8221;on&#8221; background_image=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2026\/04\/solinst-uk-ltd.webp&#8221; background_enable_image=&#8221;on&#8221; background_size=&#8221;contain&#8221; custom_button=&#8221;on&#8221; button_bg_color=&#8221;#f58025&#8243; button_border_width=&#8221;2px&#8221; button_border_color=&#8221;#ffffff&#8221; button_border_radius=&#8221;20px&#8221; button_font=&#8221;|600|||||||&#8221; button_custom_margin=&#8221;||||false|false&#8221; button_custom_padding=&#8221;1px||||false|false&#8221; custom_padding=&#8221;76px||||false|false&#8221; header_text_shadow_style=&#8221;preset5&#8243; global_colors_info=&#8221;{}&#8221; sticky_transition=&#8221;on&#8221;]<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_slide][\/et_pb_slider][\/et_pb_column][et_pb_column type=&#8221;3_4&#8243; specialty_columns=&#8221;3&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_row_inner _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;3676f7e6-7b83-4698-94ce-2cc9fa9ae43d&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2024\/12\/solinst-flute-logo-1100w.webp&#8221; alt=&#8221;solinst flute&#8221; title_text=&#8221;Solinst Flute&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; width=&#8221;50%&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_2_font_size=&#8221;30px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h1 data-pm-slice=\"1 1 []\"><strong>Map Vertical Flow Dynamics with the Solinst Flute Reverse Head Profile<\/strong><\/h1>\n<h3 data-pm-slice=\"1 1 []\"><strong>Stop Guessing. Start Measuring. Identify vertical hydraulic gradients and cross-flow potential in a single day.  <\/strong><\/h3>\n<p>When characterising fractured bedrock or complex aquifers, knowing where the water is moving is only half the battle. You need to know the <strong>driving force<\/strong> behind that movement. The <strong>Solinst Flute Reverse Head Profile (RHP)<\/strong> provides a high-resolution map of vertical hydraulic head distribution, allowing you to identify the potential for cross-contamination before it compromises your site.  <\/p>\n<p>[\/et_pb_text][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;3676f7e6-7b83-4698-94ce-2cc9fa9ae43d&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text admin_label=&#8221;research article&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_font_size=&#8221;26px&#8221; header_2_font_size=&#8221;30px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2 class=\"font_7 wixui-rich-text__text\"><strong><span class=\"wixui-rich-text__text\">How does the Reverse Head Profile work? <\/span><\/strong><\/h2>\n<p class=\"font_7 wixui-rich-text__text\"><span class=\"wixui-rich-text__text\">The method involves the inversion (removal) of the blank liner in a stepwise fashion after the completion of a <a href=\"https:\/\/www.solinst.com\/en-gb\/products\/solinst-flute\/405-transmissivity-profiling\/\" title=\"Solinst Flute Transmissivity Profile\"><strong>Transmissivity Profile<\/strong><\/a>. The blank liner is stopped between flow zones of interest as identified by the transmissivity profile.  <\/span><\/p>\n<p class=\"font_7 wixui-rich-text__text\"><span class=\"wixui-rich-text__text\">As the blank liner is inverted from the well, it uncovers discrete borehole intervals of interest that were sealed during the transmissivity profile. A pressure transducer located beneath the liner in the borehole records the new steady state borehole equilibrium pressure, Bhi, after each interval is uncovered.  As we already know the transmissivity of each interval and the previous steady state borehole equilibrium pressure, we can calculate the contribution of the newly uncovered borehole interval by using each new \u201cblended head\u201d beneath the liner and writing the flow equations for each increment that has been uncovered. <\/span><\/p>\n<p class=\"font_7 wixui-rich-text__text\"><span class=\"wixui-rich-text__text\">We define the net flow into and out of the hole to be zero, and using the transmissivity, Ti, measured for each increment in the hole, one has only the formation head, FH as an unknown for each newly exposed interval of the hole.<\/span><\/p>\n<p>[\/et_pb_text][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=&#8221;1_2,1_2&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;3676f7e6-7b83-4698-94ce-2cc9fa9ae43d&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner type=&#8221;1_2&#8243; saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p data-pm-slice=\"1 1 []\">Unlike traditional packer testing that can take days and often suffers from bypass leakage, the Reverse Head Profile uses the continuous seal of a <a href=\"https:\/\/www.solinst.com\/en-gb\/products\/solinst-flute\/405-flute-blank-liners\/\" title=\"Solinst Flute Blank Liners\"><strong>Flute Blank Liner<\/strong><\/a> to isolate and measure discrete zones with surgical precision\u2014<strong>all within a standard work day.<\/strong><\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2 data-pm-slice=\"1 3 []\"><strong>Key Benefits for Your Site Characterisation<\/strong><\/h2>\n<ul>\n<li><strong>Prevent Cross-Contamination:<\/strong> Identify vertical gradients that could drive contaminants into clean zones if the borehole is left open.<\/li>\n<li><strong>Rapid Data Collection:<\/strong> Capture discrete-zone head measurements for an entire borehole typically in less than 8 hours.<\/li>\n<li><strong>High-Resolution Insights:<\/strong> Move beyond &#8220;blended&#8221; water levels to see the true pressure distribution across different geological units.<\/li>\n<li><strong>Optimize Multi-Level Design:<\/strong> Use the RHP data to perfectly place sampling ports for permanent systems like the <a href=\"https:\/\/www.solinst.com\/en-gb\/products\/solinst-flute\/405-water-flute\/\" title=\"Solinst Water Flute Multilevel Monitoring System\"><strong>Water Flute<\/strong><\/a>.<\/li>\n<li><strong>Cost-Effective Alternative:<\/strong> Eliminate the heavy equipment and long durations required for traditional nested wells or extensive packer assemblies.<\/li>\n<\/ul>\n<h2 data-pm-slice=\"1 3 []\"><strong>Features of the Model 405 Reverse Head Profile<\/strong><\/h2>\n<ul>\n<li><strong>Stepwise Inversion Technology:<\/strong> A controlled, stepwise removal of the Blank Liner that systematically uncovers flow paths for individual head calculation.<\/li>\n<li><strong>Real-Time Equilibrium Tracking:<\/strong> Utilises a high-accuracy pressure transducer at the bottom of the borehole to verify steady-state head measurements.<\/li>\n<li><strong>Integration with Transmissivity Data:<\/strong> Combines your flow-path mapping with pressure data to build a complete 3D conceptual site model (CSM).<\/li>\n<li><strong>Versatile Application:<\/strong> Effective in boreholes up to 1000 ft (300 m) deep and across various diameters.<\/li>\n<li><strong>Removable &amp; Non-Permanent:<\/strong> Provides the data of a multi-level system without the commitment of a permanent installation.<\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column_inner][et_pb_column_inner type=&#8221;1_2&#8243; saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2026\/01\/solinst-flute-reverse-head-profile-1.webp&#8221; alt=&#8221;solinst flute reverse head profile&#8221; title_text=&#8221;Solinst Flute Reverse Head Profile&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_button button_url=&#8221;@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjU1ODIifX0=@&#8221; button_text=&#8221;Get Quote&#8221; admin_label=&#8221;405 Get Quote Button&#8221; _builder_version=&#8221;4.27.4&#8243; _dynamic_attributes=&#8221;button_url&#8221; _module_preset=&#8221;c9e00792-1360-4998-8cf9-5f6772c944ba&#8221; custom_margin=&#8221;||||false|false&#8221; custom_padding=&#8221;6px|47px|6px|47px|false|false&#8221; global_module=&#8221;5612&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;3676f7e6-7b83-4698-94ce-2cc9fa9ae43d&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2 data-pm-slice=\"1 1 []\"><strong>How It Works: The Path to Better Data<\/strong><\/h2>\n<p>The Reverse Head Profile is the &#8220;second act&#8221; of the <a href=\"https:\/\/www.solinst.com\/en-gb\/solinst-flute\/\" title=\"Solinst Flute Flexible Liner Underground Technologies\"><strong>Solinst Flute<\/strong><\/a> profiling process. After the initial installation (eversion) maps the <strong>Transmissivity<\/strong>, the liner is removed (inverted) in steps. As each new interval is uncovered, the blended head beneath the liner shifts. By tracking these shifts and applying the known transmissivity values, we calculate the unique formation head for every significant zone in your borehole.   <\/p>\n<p>[\/et_pb_text][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;3676f7e6-7b83-4698-94ce-2cc9fa9ae43d&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_heading title=&#8221;Related Products&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; title_level=&#8221;h2&#8243; title_font=&#8221;|700|||||||&#8221; title_font_size=&#8221;22px&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_heading][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=&#8221;1_2,1_2&#8243; disabled_on=&#8221;off|off|off&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; border_width_bottom=&#8221;1px&#8221; border_color_bottom=&#8221;#d3d3d3&#8243; global_module=&#8221;1933&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2024\/10\/703-waterloo-emitter-bioremediation-device-1-500&#215;500-1.webp&#8221; alt=&#8221;solinst model 703 waterloo emitter bioremediation device&#8221; title_text=&#8221;Solinst Model 703 Waterloo Emitter Bioremediation Device&#8221; url=&#8221;https:\/\/www.solinst.com\/products\/enhanced-biodegradation\/703-waterloo-emitters\/index.php&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; border_color_all=&#8221;#bcbcbc&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column_inner][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_2_line_height=&#8221;1.3em&#8221; custom_margin=&#8221;60px||||false|false&#8221; custom_margin_tablet=&#8221;0px||||false|false&#8221; custom_margin_phone=&#8221;0px||||false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; link_option_url=&#8221;https:\/\/www.solinst.com\/products\/enhanced-biodegradation\/703-waterloo-emitters\/index.php&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h3><strong><a href=\"https:\/\/www.solinst.com\/products\/enhanced-biodegradation\/703-waterloo-emitters\/index.php\" title=\"Waterloo Emitter Ideal for Enhanced Bioremediation Applications\">Enhanced Bioremediation<\/a><\/strong><\/h3>\n<p>The <strong><a href=\"https:\/\/www.solinst.com\/products\/enhanced-biodegradation\/703-waterloo-emitters\/index.php\" title=\"Solinst Waterloo Emitter\">Waterloo Emitter\u2122<\/a><\/strong>is a simple, low cost device designed for the bioremediation of contaminated groundwater. It enables oxygen or other amendments to diffuse through silicone or LDPE tubing in a controlled, uniform manner. Ideal for aerobic bioremediation of MTBE and BTEX, with minimal maintenance required.  <\/p>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;https:\/\/www.solinst.com\/products\/enhanced-biodegradation\/703-waterloo-emitters\/index.php&#8221; button_text=&#8221;Waterloo Emitter&#8221; button_alignment=&#8221;right&#8221; button_alignment_tablet=&#8221;center&#8221; button_alignment_phone=&#8221;center&#8221; button_alignment_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_color=&#8221;#000000&#8243; button_bg_color=&#8221;#FFFFFF&#8221; button_border_color=&#8221;#ff8500&#8243; button_border_radius=&#8221;20px&#8221; button_icon=&#8221;&#x3d;||divi||400&#8243; custom_padding=&#8221;0px|||||&#8221; button_text_size_tablet=&#8221;18px&#8221; button_text_size_phone=&#8221;16px&#8221; button_text_size_last_edited=&#8221;on|phone&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=&#8221;1_2,1_2&#8243; disabled_on=&#8221;off|off|off&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; border_width_bottom=&#8221;1px&#8221; border_color_bottom=&#8221;#d3d3d3&#8243; global_module=&#8221;1934&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2024\/10\/408M-micro-double-valve-pump-1-500&#215;500-1.webp&#8221; alt=&#8221;solinst 408m micro double valve pump&#8221; title_text=&#8221;Solinst 408M Micro Double Valve Pump&#8221; url=&#8221;https:\/\/www.solinst.com\/products\/groundwater-samplers\/408m-micro-double-valve-pumps\/&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; border_color_all=&#8221;#bcbcbc&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column_inner][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_2_line_height=&#8221;1.3em&#8221; custom_margin=&#8221;60px||||false|false&#8221; custom_margin_tablet=&#8221;0px||||false|false&#8221; custom_margin_phone=&#8221;0px||||false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; link_option_url=&#8221;https:\/\/www.solinst.com\/products\/groundwater-samplers\/408m-micro-double-valve-pumps\/&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h3><strong><a href=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/408m-micro-double-valve-pumps\/\">3\/8&#8243; Diameter Flexible Pneumatic Pump<\/a><\/strong><\/h3>\n<p>The <a href=\"https:\/\/www.solinst.com\/products\/groundwater-samplers\/408m-micro-double-valve-pumps\/\" title=\"408M Micro Double Valve Pump\"><strong>Micro Double Valve Pump<\/strong><\/a> has a remarkably small and flexible design. At 3\/8&#8243; (10 mm) diameter it is small enough to sample groundwater from channels of a CMT System. <\/p>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;https:\/\/www.solinst.com\/products\/groundwater-samplers\/408m-micro-double-valve-pumps\/&#8221; button_text=&#8221;Micro Double Valve Pump&#8221; button_alignment=&#8221;right&#8221; button_alignment_tablet=&#8221;center&#8221; button_alignment_phone=&#8221;center&#8221; button_alignment_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_color=&#8221;#000000&#8243; button_bg_color=&#8221;#FFFFFF&#8221; button_border_color=&#8221;#ff8500&#8243; button_border_radius=&#8221;20px&#8221; button_icon=&#8221;&#x3d;||divi||400&#8243; custom_padding=&#8221;0px|||||&#8221; button_text_size_tablet=&#8221;18px&#8221; button_text_size_phone=&#8221;16px&#8221; button_text_size_last_edited=&#8221;on|phone&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=&#8221;1_2,1_2&#8243; disabled_on=&#8221;off|off|off&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; border_width_bottom=&#8221;1px&#8221; border_color_bottom=&#8221;#d3d3d3&#8243; global_module=&#8221;1935&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2024\/10\/410-peristaltic-pump-1-500&#215;500-1.webp&#8221; alt=&#8221;solinst model 410 peristaltic pumps&#8221; title_text=&#8221;Solinst Model 410 Peristaltic Pumps&#8221; url=&#8221;https:\/\/www.solinst.com\/en-gb\/groundwater-samplers\/410-peristaltic-pumps\/&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; border_color_all=&#8221;#bcbcbc&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column_inner][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_2_line_height=&#8221;1.3em&#8221; custom_margin=&#8221;60px||||false|false&#8221; custom_margin_tablet=&#8221;0px||||false|false&#8221; custom_margin_phone=&#8221;0px||||false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; link_option_url=&#8221;https:\/\/www.solinst.com\/en-gb\/groundwater-samplers\/410-peristaltic-pumps\/&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h3><strong><a href=\"https:\/\/www.solinst.com\/en-gb\/groundwater-samplers\/410-peristaltic-pumps\/\" title=\"Peristaltic Pumps\">Rugged Peristaltic Pump<\/a><\/strong><\/h3>\n<p>Compact, lightweight, and water-resistant, the <a href=\"https:\/\/www.solinst.com\/en-gb\/groundwater-samplers\/410-peristaltic-pumps\/\" title=\"Peristaltic Pumps\"><strong>Solinst Peristaltic Pump<\/strong><\/a> is designed for field use. One easy-access control allows various speeds and reversible flow. Ideal for shallow water and vapour sampling.[\/et_pb_text][et_pb_button button_url=&#8221;https:\/\/www.solinst.com\/en-gb\/groundwater-samplers\/410-peristaltic-pumps\/&#8221; button_text=&#8221;Peristaltic Pump&#8221; button_alignment=&#8221;right&#8221; button_alignment_tablet=&#8221;center&#8221; button_alignment_phone=&#8221;center&#8221; button_alignment_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_color=&#8221;#000000&#8243; button_bg_color=&#8221;#FFFFFF&#8221; button_border_color=&#8221;#ff8500&#8243; button_border_radius=&#8221;20px&#8221; button_icon=&#8221;&#x3d;||divi||400&#8243; custom_padding=&#8221;0px|||||&#8221; button_text_size_tablet=&#8221;18px&#8221; button_text_size_phone=&#8221;16px&#8221; button_text_size_last_edited=&#8221;on|phone&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner column_structure=&#8221;1_2,1_2&#8243; disabled_on=&#8221;off|off|off&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; border_width_bottom=&#8221;1px&#8221; border_color_bottom=&#8221;#d3d3d3&#8243; global_module=&#8221;82141&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/www.solinst.com\/wp-content\/uploads\/2024\/10\/103-tag-line-1-500&#215;500-1.webp&#8221; alt=&#8221;solinst model 103 tag line for accurate pump and bailer deployments and accurate measuring of backfill layers during well construction&#8221; title_text=&#8221;Solinst Model 103 Tag Line For Accurate Pump And Bailer Deployments And Accurate Measuring Of Backfill Layers During Well Construction&#8221; url=&#8221;https:\/\/www.solinst.com\/products\/level-measurement-devices\/103-tag-line\/&#8221; _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; border_color_all=&#8221;#bcbcbc&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column_inner][et_pb_column_inner type=&#8221;1_2&#8243; _builder_version=&#8221;4.25.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; header_2_line_height=&#8221;1.3em&#8221; custom_margin=&#8221;60px||||false|false&#8221; custom_margin_tablet=&#8221;0px||||false|false&#8221; custom_margin_phone=&#8221;0px||||false|false&#8221; custom_margin_last_edited=&#8221;on|desktop&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h3><strong><a href=\"https:\/\/www.solinst.com\/products\/level-measurement-devices\/103-tag-line\/\" title=\"103 Tag Line\">Tag Line &#8211; Rugged, Simple, Convenient<\/a><\/strong><\/h3>\n<p>The <strong><a href=\"https:\/\/www.solinst.com\/products\/level-measurement-devices\/103-tag-line\/\" title=\"103 Tag Line\">Tag Line<\/a><\/strong> uses a weight attached to laser marked cable, mounted on a sturdy reel. Convenient for measuring depths during monitoring well construction. <\/p>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;https:\/\/www.solinst.com\/products\/level-measurement-devices\/103-tag-line\/&#8221; button_text=&#8221;Versatile Tag Line&#8221; button_alignment=&#8221;right&#8221; button_alignment_tablet=&#8221;center&#8221; button_alignment_phone=&#8221;center&#8221; button_alignment_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_text_size=&#8221;20px&#8221; button_text_color=&#8221;#000000&#8243; button_bg_color=&#8221;#FFFFFF&#8221; button_border_color=&#8221;#ff8500&#8243; button_border_radius=&#8221;20px&#8221; button_icon=&#8221;&#x3d;||divi||400&#8243; custom_padding=&#8221;0px|||||&#8221; button_text_size_tablet=&#8221;18px&#8221; button_text_size_phone=&#8221;16px&#8221; button_text_size_last_edited=&#8221;on|desktop&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column_inner][\/et_pb_row_inner][\/et_pb_column][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;Adobe Analytics Code&#8221; _builder_version=&#8221;4.27.0&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;||4px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.27.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.27.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_code admin_label=&#8221;AA Code for this page&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<!-- SiteCatalyst code version: H.21. 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Start Measuring. Identify vertical hydraulic gradients and cross-flow potential in a single day. When characterising fractured bedrock or complex aquifers, knowing where the water is moving is only half the battle. You need to know the driving force behind that movement. The Solinst Flute Reverse Head Profile (RHP) provides a high-resolution map of vertical hydraulic head distribution, allowing you to identify the potential for cross-contamination before it compromises your site. How does the Reverse Head Profile work? The method involves the inversion (removal) of the blank liner in a stepwise fashion after the completion of a Transmissivity Profile. The blank liner is stopped between flow zones of interest as identified by the transmissivity profile. As the blank liner is inverted from the well, it uncovers discrete borehole intervals of interest that were sealed during the transmissivity profile. A pressure transducer located beneath the liner in the borehole records the new steady state borehole equilibrium pressure, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":220445,"parent":220605,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"folder":[71],"class_list":["post-220414","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Reverse Head Profile<\/title>\n<meta name=\"description\" content=\"Reverse Head Profile is a technique for measuring the vertical head distribution in a borehole after Transmissivity Profile completion\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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