This guy said his pvb wouldn't stop leaking...upon arriving, the check valve was removed and the poppet was in upside down..homeowner out of town. I put it all back together like humptydumpty....turned downstream BV off and fired it up.....sealed fine. Opened downstream BV....all 6 valves appear to be stuck...but I cannot be sure because I can't hear a frigging thing with the PVB gushing... Note the beautiful galvanized mani....the nice saddle tap for swamp cooler..(it leaks also)... I told the homeowner I would love to rebuild this rube goldberg and make it all work for him...he said no way and has so far refused to pay me for my time.... Picture worth 65 bucks? anyone?