{"id":546,"date":"2015-12-09T15:01:15","date_gmt":"2015-12-09T22:01:15","guid":{"rendered":"https:\/\/astfilters.com\/?page_id=546"},"modified":"2023-12-29T10:21:09","modified_gmt":"2023-12-29T17:21:09","slug":"bubble-bead-operation-and-backwash","status":"publish","type":"page","link":"https:\/\/astfilters.com\/aquatic-systems\/support\/bubble-bead-filters-resources\/bubble-bead-operation-and-backwash\/","title":{"rendered":"Bubble Bead Operation and Backwash"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;Breadcrumbs&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#363636&#8243; custom_margin=&#8221;10px||0px||false|false&#8221; custom_padding=&#8221;0px||0px||false|false&#8221; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221; global_module=&#8221;2946&#8243; theme_builder_area=&#8221;post_content&#8221;][et_pb_row _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;15px||15px||false|false&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][lwp_divi_breadcrumbs font_icon=&#8221;&#x45;||divi||400&#8243; link_color=&#8221;#ffffff&#8221; separator_color=&#8221;#ffffff&#8221; current_text_color=&#8221;#ffffff&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][\/lwp_divi_breadcrumbs][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; theme_builder_area=&#8221;post_content&#8221; _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;0px||||false|false&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243;][et_pb_row _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; type=&#8221;4_4&#8243; theme_builder_area=&#8221;post_content&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; theme_builder_area=&#8221;post_content&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h1 style=\"text-align: center;\">Bubble Bead Operation and Backwash<\/h1>\n<p>The Bubble Bead\u00ae Filter is\u00a0effective at removing unwanted solids, yet gentle enough to maintain a healthy bio-film. Please refer to the normal operation and backwashing diagrams below.<\/p>\n<p>There are 9 models\u00a0available with from 1\/4 \u2013 10 ft3 (0.007 \u2013 0.283 m3) of bead media capacity with flow rates ranging from 10-150 gpm (0.00063 \u2013 0.0095 m3\/sec).[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; column_structure=&#8221;1_2,1_2&#8243; theme_builder_area=&#8221;post_content&#8221;][et_pb_column _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; type=&#8221;1_2&#8243; theme_builder_area=&#8221;post_content&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; theme_builder_area=&#8221;post_content&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h2>NORMAL OPERATION:<\/h2>\n<ul>\n<li>Water is pumped through the Filter Inlet via a 3-way Valve positioned to (<strong>A<\/strong>) and the Diffuser (<strong>B<\/strong>).<\/li>\n<li>Water passes upwards through Bead Bed (<strong>C<\/strong>) for bioclarification and exits through Screen (<strong>D<\/strong>).<\/li>\n<li>Filtered water is returned through Effluent Line (<strong>E<\/strong>) and a Check Valve (<strong>F<\/strong>) to the aquatic system.<\/li>\n<\/ul>\n<h2>BACKWASHING:<\/h2>\n<ul>\n<li>The pump (not shown) is turned off and the 3-way Valve at the Inlet is turned to the Sludge Drain Position (<strong>G<\/strong>).<\/li>\n<li>Backwashing is accomplished by completely draining the water from the filter.<\/li>\n<li>As water drains from the filter, the check Valve (<strong>F<\/strong>) on the Effluent Line closes and air is sucked into the Air Inlet Check Valve (<strong>H<\/strong>).<\/li>\n<li>Agitation of the beads is accomplished as air rises up through the Washing Throat (<strong>I<\/strong>) and beads and water drop down into the Expansion Chamber (<strong>J<\/strong>).<\/li>\n<li>As the beads enter the Expansion Chamber (<strong>J<\/strong>), they initially sink with momentum, and then float upwards as the water velocity decreases and buoyancy takes hold. As this occurs, water is sweeping past the beads which serves to carry away the solids freed from the bead media out of the filter.<\/li>\n<li>Once the filter unit has drained completely, the 3-way Valve is returned to position (<strong>A<\/strong>) and the Pump (not shown) is turned back on.<\/li>\n<li>An unscreened Emergency Drain (<strong>K<\/strong>) is provided at the bottom of the filter unit.<\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; type=&#8221;1_2&#8243; theme_builder_area=&#8221;post_content&#8221;][et_pb_image src=&#8221;https:\/\/astfilters.com\/aquatic-systems\/wp-content\/uploads\/sites\/3\/2015\/12\/BBF-Configuration.jpg&#8221; _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; theme_builder_area=&#8221;post_content&#8221; title_text=&#8221;BBF-Configuration&#8221; show_in_lightbox=&#8221;on&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; type=&#8221;4_4&#8243; theme_builder_area=&#8221;post_content&#8221;][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; theme_builder_area=&#8221;post_content&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h2>BACKWASH OPERATION:<\/h2>\n<p>Backwash operation includes three primary modes (diagram below): filtration, backwash, and refilling. Backwashing is accomplished by completely draining all fluid from the unit. This causes the bead bed to collapse, and individual beads to be vigorously scrubbed by cavitation and bubbles as they are sucked downward through the washing throat. The backwashing process removes solids captured by the bead bed, but retains the beads with their delicate films of nitrifying bacteria.[\/et_pb_text][et_pb_image src=&#8221;https:\/\/astfilters.com\/aquatic-systems\/wp-content\/uploads\/sites\/3\/2015\/12\/bbf-backwash-configuration-1.jpg&#8221; _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; theme_builder_area=&#8221;post_content&#8221; title_text=&#8221;bbf backwash configuration&#8221; show_in_lightbox=&#8221;on&#8221; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243; align=&#8221;center&#8221;][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p><div class=\"et_pb_module lwp_divi_breadcrumbs lwp_divi_breadcrumbs_0\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_module_inner\">\n\t\t\t\t\t<div class=\"lwp-breadcrumbs\"> <span class=\"before\"><\/span> <span vocab=\"https:\/\/schema.org\/\" typeof=\"BreadcrumbList\"><span property=\"itemListElement\" typeof=\"ListItem\"><a property=\"item\" typeof=\"WebPage\" href=\"https:\/\/astfilters.com\/aquatic-systems\/\" class=\"home\"><span property=\"name\">Home<\/span><\/a><meta property=\"position\" content=\"1\"><\/span> <span class=\"separator et-pb-icon\">E<\/span> <\/span><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>Bubble Bead Operation and Backwash The Bubble Bead\u00ae Filter is\u00a0effective at removing unwanted solids, yet gentle enough to maintain a healthy bio-film. Please refer to the normal operation and backwashing diagrams below. There are 9 models\u00a0available with from 1\/4 \u2013 10 ft3 (0.007 \u2013 0.283 m3) of bead media capacity with flow rates ranging from 10-150 gpm (0.00063 \u2013 0.0095 m3\/sec).NORMAL OPERATION: Water is pumped through the Filter Inlet via a 3-way Valve positioned to (A) and the Diffuser (B). Water passes upwards through Bead Bed (C) for bioclarification and exits through Screen (D). Filtered water is returned through Effluent Line (E) and a Check Valve (F) to the aquatic system. BACKWASHING: The pump (not shown) is turned off and the 3-way Valve at the Inlet is turned to the Sludge Drain Position (G). Backwashing is accomplished by completely draining the water from the filter. As water drains from the filter, the check Valve (F) on the Effluent Line closes and air is sucked into the Air Inlet Check Valve (H). Agitation of the beads is accomplished as air rises up through the Washing Throat (I) and beads and water drop down [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":295,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false,"footnotes":""},"class_list":["post-546","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bubble Bead Operation and Backwash - AST Bead Filters<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/astfilters.com\/aquatic-systems\/support\/bubble-bead-filters-resources\/bubble-bead-operation-and-backwash\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bubble Bead Operation and Backwash - AST Bead Filters\" \/>\n<meta property=\"og:description\" content=\"Bubble Bead Operation and Backwash The Bubble Bead\u00ae Filter is\u00a0effective at removing unwanted solids, yet gentle enough to maintain a healthy bio-film. Please refer to the normal operation and backwashing diagrams below. There are 9 models\u00a0available with from 1\/4 \u2013 10 ft3 (0.007 \u2013 0.283 m3) of bead media capacity with flow rates ranging from 10-150 gpm (0.00063 \u2013 0.0095 m3\/sec).NORMAL OPERATION: Water is pumped through the Filter Inlet via a 3-way Valve positioned to (A) and the Diffuser (B). Water passes upwards through Bead Bed (C) for bioclarification and exits through Screen (D). Filtered water is returned through Effluent Line (E) and a Check Valve (F) to the aquatic system. BACKWASHING: The pump (not shown) is turned off and the 3-way Valve at the Inlet is turned to the Sludge Drain Position (G). Backwashing is accomplished by completely draining the water from the filter. As water drains from the filter, the check Valve (F) on the Effluent Line closes and air is sucked into the Air Inlet Check Valve (H). Agitation of the beads is accomplished as air rises up through the Washing Throat (I) and beads and water drop down [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/astfilters.com\/aquatic-systems\/support\/bubble-bead-filters-resources\/bubble-bead-operation-and-backwash\/\" \/>\n<meta property=\"og:site_name\" content=\"Aquatic Systems\" \/>\n<meta property=\"article:modified_time\" content=\"2023-12-29T17:21:09+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/astfilters.com\\\/aquatic-systems\\\/support\\\/bubble-bead-filters-resources\\\/bubble-bead-operation-and-backwash\\\/\",\"url\":\"https:\\\/\\\/astfilters.com\\\/aquatic-systems\\\/support\\\/bubble-bead-filters-resources\\\/bubble-bead-operation-and-backwash\\\/\",\"name\":\"Bubble Bead Operation and Backwash - AST Bead Filters\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/astfilters.com\\\/aquatic-systems\\\/#website\"},\"datePublished\":\"2015-12-09T22:01:15+00:00\",\"dateModified\":\"2023-12-29T17:21:09+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/astfilters.com\\\/aquatic-systems\\\/support\\\/bubble-bead-filters-resources\\\/bubble-bead-operation-and-backwash\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/astfilters.com\\\/aquatic-systems\\\/support\\\/bubble-bead-filters-resources\\\/bubble-bead-operation-and-backwash\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/astfilters.com\\\/aquatic-systems\\\/support\\\/bubble-bead-filters-resources\\\/bubble-bead-operation-and-backwash\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/astfilters.com\\\/aquatic-systems\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Support Overview\",\"item\":\"https:\\\/\\\/astfilters.com\\\/aquatic-systems\\\/support\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Bubble Bead\u00ae Filter Resources\",\"item\":\"https:\\\/\\\/astfilters.com\\\/aquatic-systems\\\/support\\\/bubble-bead-filters-resources\\\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Bubble Bead Operation and Backwash\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/astfilters.com\\\/aquatic-systems\\\/#website\",\"url\":\"https:\\\/\\\/astfilters.com\\\/aquatic-systems\\\/\",\"name\":\"Aquatic Systems\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/astfilters.com\\\/aquatic-systems\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Bubble Bead Operation and Backwash - AST Bead Filters","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/astfilters.com\/aquatic-systems\/support\/bubble-bead-filters-resources\/bubble-bead-operation-and-backwash\/","og_locale":"en_US","og_type":"article","og_title":"Bubble Bead Operation and Backwash - AST Bead Filters","og_description":"Bubble Bead Operation and Backwash The Bubble Bead\u00ae Filter is\u00a0effective at removing unwanted solids, yet gentle enough to maintain a healthy bio-film. 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