[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-505618-105":59,"doc-detail-505618-en":131},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","backflow-prevention-cross-connection-control-manual-for-the-education-of-ohio-certified-backflow-prevention-technicians","Backflow Prevention & Cross-Connection Control Manual - For the Education of Ohio Certified Backflow Prevention Technicians","","Backflow Prevention & Cross-Connection Control Manual for training Ohio certified backflow prevention technicians. The course prepares participants to test, repair, and maintain backflow prevention devices used to protect the public water supply through classroom instruction and hands-on test lab practice. It outlines course structure, certification and recertification timing, tester responsibilities after expiration, and core concepts such as backflow, cross-connections, hazard levels, and approved prevention methods including air-gap separation and other approved devices.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/backflow-prevention-cross-connection-control-manual-for-the-education-of-ohio-certified-backflow-prevention-technicians/505618/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/backflow-prevention-cross-connection-control-manual-for-the-education-of-ohio-certified-backflow-prevention-technicians/505618.png","ImageObject",300,407,{"name":92,"@type":93},"EvelynWrites","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-09","2026-10-04",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",11,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What is the purpose of this backflow prevention course?","Question",{"text":113,"@type":114},"The course prepares trainees to test and repair various backflow prevention devices used to protect the public water supply.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"How often must technicians complete recertification?",{"text":118,"@type":114},"Technicians are required to attend a Re-certification Course every three years to remain current.",{"name":120,"@type":111,"acceptedAnswer":121},"What does “backflow” mean in this manual?",{"text":122,"@type":114},"Backflow is defined as the unintentional reversal of the normal direction of flow within a piping system.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},505618,1791407814,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":140,"language":141,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":142,"faqs":143,"seo_title":144,"seo_description":67,"update_tm":145,"read_time":146,"preview_page_count":4},687212989558,"https://ap-avatar.wpscdn.com/davatar_a8503ba1806abce46bf441b54a3ca4cd","6606 Tussing Road-P.O. Box 4009 Reynoldsburg, Ohio 43068-9009 614-644-2223, option 2 [BCCTrade@com.ohio.gov](BCCTrade@com.ohio.gov)  \nBackflow Prevention & Cross-Connection  Control Manual  \nFor the Education of Ohio Certified Backflow Prevention Technicians  \nAdministered by: The Ohio Department of Commerce, Division of Industrial Compliance, Backflow Section.  \nManual Development Sponsored By:  \nOhio Department of Commerce  \nOhio Department of Health  \nOhio Environmental Protection Agency  \nOhio Rural Water Association  \nOperator Training Committee of Ohio, Incorporated  \nOhio Section, American Water Works Association  \nOriginal Manual Development Committee:  \nDavid Bornino, Ohio Environmental Protection Agency  \nFrank Czako, APHC Backflow School  \nRick Eberle, Ohio Section, American Waterworks Association Ron Graves, Plumbers, Pipefitters and Service Technicians Local 189 JATC Jess Jones, Operator Training Committee of Ohio, Inc.  \nAndy Provoznik, Ohio Rural Water association  \nRalph Reeb, Ohio Department of Commerce  \nTerry Urbanek, Plumbers & Pipefitters Local 120  \nJack Wormley, PHCC of Ohio  \n***IN MEMORY…a special appreciation and thanks to Jess Jones, Operator Training Committee of Ohio Inc., for a lifetime commitment to the Water Purveyor and Backflow Industries. ***  \n***IN MEMORY…of Ralph Reeb, Plumbing Chief, Ohio Department of Commerce, Division of Industrial Compliance. ***  \n***IN MEMORY…of Jack Wormley, PHCC of Ohio. ***  \nRevised March 25, 2019  \nTable of Contents …………………………………………………..3  \nAbout This Course …………………………………………………..4  \nIntroduction …………………………………………………..5  \nAuthority in Ohio …………………………………………………..6  \nResponsibility ……………………………………..……….…….7-9  \nDegree of Hazard ………………………………………………….10  \nDefinitions ……………………………………………....11-17  \nUpstream vs Downstream …………………………………………………..18  \nAtmospheric Pressure ………………………………………….……….19-20  \nPressure & Elevation Head …………………………………………………..21  \nBacksiphonage …………………………………………………..22  \nBackpressure …………………………………………………..23  \nCross-Connections …………………………………………………..24  \nVenturi Principle ………………………………………...……..25-26  \nAir-Gap Separation …………………………………………………..27  \nASSE 1013 …………………………………………………..28  \nASSE 1015 …………………………………………………..29  \nASSE 1001 ……………………………………...………..30-31  \nASSE 1020 …………………………………………………..32-35  \nInstallation Requirements …………………………………………………..36  \nBackflow Preventer Application …………………………………………………..37  \nBackflow Prevention Devices …………………………………………………..38-46  \nBarometric Piping Examples ………………………………………………………47  \nBackflow Application Chart …………………………………………………..48-50  \nThermal Expansion Control …………………………………………………..51  \nBarometric Loop …………………………………………………..52  \nAuxiliary Water Sources …………………………………………………..53  \nInterchangeable Connectors …………………………………………………..54  \nLow-Suction Pressure Cut-Off …………………………………………………..55  \nOhio Basic Building Code, Plumbing …………………………………………………..56-64  \nSpecific BFP Applications …………………………………………………..65  \nOhio Administrative Code, OEPA …………………………………………………..66-74  \nPolicy on Use of Antifreeze …………………………………………………..75  \nCheckList for Testers …………………………………………………..76  \n3-Vavle Analog Test Gauge …………………………………………………..77  \nASSE 1013 Test Procedures …………………………………………………..78-79  \nASSE 1015 Test Procedures …………………………………………………..80-81  \nASSE 1020 Test Procedures …………………………………………………..82-83  \nASSE 1056 Test Procedure …………………………………………………..84-85  \n5-Valve Analog Test Gauge …………………………………………………..86  \nASSE 1013 Test Procedures …………………………………………………..87-88  \nASSE 1015 Test Procedures …………………………………………………..89-90  \nASSE 1020 Test Procedures …………………………………………………..91-92  \nASSE 1056 Test Procedure …………………………………………………..93-94  \nGeneric Test Form …………………………………………………..95  \nTest Gauge Recalibration …….…………………………………………….96  \nTester Safety …………………………………………….….....97  \nRP Parts Drawing …………………………………………………..98  \nDC Parts Drawing …………………………………………………..99  \nPVB Parts Drawing …………………………………………...…....100  \nOHIO DEPARTMENT OF COMMERCE BACKFLOW PREVENTION MANUAL  \nABOUT THIS COURSE  \nThi","cbCaiiZLqr9QD7Fi","https://ap.wps.com/l/cbCaiiZLqr9QD7Fi","pdf",2767121,100,"English","# About This Course\n## Introduction\n## Authority in Ohio\n## Responsibility\n## Degree of Hazard\n## Definitions\n## Upstream vs Downstream\n## Atmospheric Pressure\n## Pressure & Elevation Head\n## Backsiphonage\n## Backpressure\n## Cross-Connections\n## Venturi Principle\n## Air-Gap Separation\n## ASSE 1013\n## ASSE 1015\n## ASSE 1001\n## ASSE 1020\n## Installation Requirements\n## Backflow Preventer Application","[{\"question\":\"What is the purpose of this backflow prevention course?\",\"answer\":\"The course prepares trainees to test and repair various backflow prevention devices used to protect the public water supply.\"},{\"question\":\"How often must technicians complete recertification?\",\"answer\":\"Technicians are required to attend a Re-certification Course every three years to remain current.\"},{\"question\":\"What does “backflow” mean in this manual?\",\"answer\":\"Backflow is defined as the unintentional reversal of the normal direction of flow within a piping system.\"}]","Backflow Prevention & Cross-Connection Control Manual - For the Education of Ohio Certified Backflow Prevention Technicians | PDF",1791151858,252]