Designation:F2707−10StandardSafetyPerformanceSpecificationforSafeDesignandInstallationofFieldFabricatedSuction-LimitingVentSystemsforSuctionEntrapmentPreventioninSwimmingPools,Spas,HotTubs,andWadingPools1ThisstandardisissuedunderthefixeddesignationF2707;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thissafetyperformancespecificationprovidesrequire-mentsforsafetyindesignandinstallationwhenusingasuction-limitingventsystemforsuctionentrapmentpreventioninswimmingpools,spas,hottubs,orwadingpools.1.2Thepurposeoftheventistorelievethevacuumatthesuctionoutlet(s)causedbyanyblockageofthesuctionoutlet(s).Theventisintendedtopreventbodyentrapmentatthesuctionoutlet(s)andmayalsomitigatelimbentrapment.Itisnotintendedtopreventotherinjuriescausedbythesuctionoutlet(s)suchashairentrapment,mechanicalentrapment,orevisceration.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ANSIStandards:2ANSIZ535.2EnvironmentalandfacilitysafetysignsANSIZ535.4ProductsafetysignsandlabelsASME/ANSIA112.19.8SuctionFittingsforUseinSwim-mingPools,WadingPools,Spas,andHotTubs3.Terminology3.1Definitions:3.1.1allowabledrawdown,n—drawdowndepthcorre-spondingtotheacceptableremovaleffortforaparticularuncoveredsump;itisphysicallybuiltintothesystem.3.1.2engineer,n—registeredprofessionalengineer.3.1.3field-fabricatedvent(FFV),n—open-to-atmosphereventinstalledbetweenthepoolsuctionoutlet(s)andthesuctionside...
