The source of the problem seems to be a pool water auto-refilling system. Not sure if that’s exactly what it’s called, but it’s a float / valve setup (manufacturer: Korky, a toilet float, I guess) that keeps my swimming pool water at a constant level.
When I shut off the supply to this float / valve, the hammering stops. Of course, then my pool level gets low.
The problem is worst when the wind blows and the water is cold. I understand the basics of what causes pipes to hammer. Rippling on the water surface is maybe causing the “kazoo” effect that leads to periodic rattling through my pipes and is most pronounced at my water softener. What can I do to fix this? Is the softener a culprit also? It’s several years old and we do have very hard water (Phoenix area)
Replies
Install a sealed hammer arrester.
The nearest the valve that you can get it best.
http://www.plumbingsupply.com/waterhammerarresters.html
You can get them at main home horror stores.
Also you might want to increase the supports for the pipes.
And also check your water pressure.
High water pressure makes this worse.
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A-holes. Hey every group has to have one. And I have been elected to be the one. I should make that my tagline.
I like Bill's idea.
Is this a new problem? Sounds like you need a system that doesn't try to keep a set level but lets the pool get down an inch or two and then fills it up to prevent the cycling you are seeing.
Yea, check your water pressure. it should be between 60-70psi. If it is above that it can cause a hammer. It could be your regulator is shot.