Re: Knocking pipes in new construction
Posted by js on February 09, 19100 at 23:18:15:
In response to Re: Knocking pipes in new construction
: : We have a new construction-2 story home, we've lived in it less than a month. Every time the water comes on-either the faucets or the toilets we hear knocks, sometimes they get really loud. The plumber told us the pipes knock because foam insulation was sprayed around the holes in the floor. Is this correct? Can it be fixed? If the foam insulation needs to be removed, what kind of insulation should we use? Help!

: Tammie, I think this guy is pulling your leg. Noises like you here are due to incorrect installation of the plumbing. I am courious do you have a PRV on your system? And if you do, do you have an expansion tank on the water heater? Dale's Plumbing Service LMP

Sounds like a load of #$#@ to me. I agree with dale.. sounds like you need a "water hammer arestor"




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