I've installed water hammer arrestors on several hot and cold supply lines in my basement (where I have access). The fixtures that cause the water hammer are on the two floors above where the arrestors are installed.
When I installed them, the water hammer stopped for a few days, then restarted. I shut off my water, drained the entire supply system, and the arrestors started working again--but again, the water hammer returned after a few days.
I suspect that the supply lines are not properly secured inside the wall where they're banging, but I would still expect the arrestors to mostly mitigate the issue. Do I need to install the arrestors closer to the fixture? Closer to where the banging is? Do I need to open up the wall...?
Thanks in advance!
When I installed them, the water hammer stopped for a few days, then restarted. I shut off my water, drained the entire supply system, and the arrestors started working again--but again, the water hammer returned after a few days.
I suspect that the supply lines are not properly secured inside the wall where they're banging, but I would still expect the arrestors to mostly mitigate the issue. Do I need to install the arrestors closer to the fixture? Closer to where the banging is? Do I need to open up the wall...?
Thanks in advance!