Originally Posted by Mike Leary
West coast code still permits it. We call for proper clearance, side to side to test, plus 10" on the vertical with a gravel sump and unions. The new DCVAs with removabable check assemblies may change the specs, but, as a ex- tester, I like all the room I can get.
Which west coast you talkin' about ?
No DCVAs allowed here at all... only RPZs on commercial jobs.
AVBs, A/S valves, PVBs are all still allowed though. Go figure.