Yersmay
Writing, constructionDIY Member
I am currently repiping my 1600 sq ft. house with copper. I've also gutted the main bathroom and have installed new valves for all fixtures. Before soldering near the shower and bath valves, I opened them to release air pressure (something I learned on this forum) and discovered that the valves open and close with only a 1/4 turn. When I saw this, I began to wonder about water hammer problems because the valve can be shut down so quickly. Your advice would be greatly appreciated. Here are some factors that may or may not be important. The street supply is 3/4. I reduced to 1/2 at each fixture, keeping the 1/2 to a minimum. The shower and bath valves are two handled things, which appealed to me. To comply with pressure balance concerns, I installed a remote unit under the shower. This unit will serve both the shower and the bath, which are two separate sets of valves.
I am reluctant to put a hammer arrestor in the wall just beneath the valves because they'll be buried under tile. But I can easily put them in the crawl space under the shower, between the valves and the pressure balance unit. That would put the hammer arrestors about 4 or five feet from the shower valves.
I will also be installing a pressure regulating valve for the house.
Given my circumstances, do you think hammer arrestors would be advisable? If so, does each water line to a bathroom fixture get one?
Thanks in advance!
I am reluctant to put a hammer arrestor in the wall just beneath the valves because they'll be buried under tile. But I can easily put them in the crawl space under the shower, between the valves and the pressure balance unit. That would put the hammer arrestors about 4 or five feet from the shower valves.
I will also be installing a pressure regulating valve for the house.
Given my circumstances, do you think hammer arrestors would be advisable? If so, does each water line to a bathroom fixture get one?
Thanks in advance!