So long story short I piped a new house made propress header which unfortunately ended up right behind the hot water tanks, due to lack of space in the mechanical slash laundry area. Ran a 1" municipal service line series 200 then put a 1"x3/4x3/4" tee in and ran two 3/4 services into a shared dwelling kind of like a duplex except its two.sisters each gets one side with a shared entry/studio. Ran to mains in so that if water meters ever come to town they can distinguish who's using what, also so if one is locked and the other needs the main off each have the option each have there own Bradford white 40 gallon electric. So here you must protect the municipal service line with a check valve so both mains got a disk check valve. Also vavuam breakers and thermal expansion tanks. The village had an issue with there curb stop so it got dug and replaced now I have both sides charged except all of a sudden both check valves started slamming I can't see both failing out of the box, but at the same time I can't see enough rubble getting in the pipe so end up in both checkvalves. I wasn't there to see what the village did but I know they had the curb stop out atleast twice? What do you guys think the checkvalves are on an awkward spot beside the hot water tanks really don't want to have drain both tanks and cut into all the nice propress I have done, not a huge job but a pain in the *** regardless.
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