Im replacing laundry tub, sink faucets and washing machine bibs. There are 8" copper air chambers soldered into the line. I doubt they are doing anything for me but I do not have a water hammer problem so maybe they do work as intended.

Should I add air chambers again or add a tee with hammer arrestors to the new piping? Or should I avoid that extra work/expense and wait and see if I have a problem and then add them at the supply lines if neccessary?

Put it this way, are hammer arrestors at a washer a code requirement?

not under my code. (MA)

The air chambers are not doing anything. After a short time they just fill with water. It was a good idea but didn't work - just like my first 5 marriages.....

I've installed a fair amount of the Sioux Chief water hammer arresters. Usually at the shut off valve or on the back of the machine.

[www.plumbingsupply.com]

To the best of my knowledge they are not a code requirement in California for washing machines.



Edited 1 times.

They want to see them now Packy,last inspection I had the inspector told me he wants to see them on the next job or don't call for the rough.

first i've heard of this ?

is it his decision or state code?

Not sure,brought it up with a few other Plumbers and they said all the inspectors want to see them now.I'm going to make a few calls next week to see what the story is.I'll tell you I'm not a fan of those tiny (at the fixture) arrestors so for a few years we have been installing the ( Sioux Chief 652-as ) Press/sweat entry level commercial hammer arrestors inside the walls for washing machines and shower valves with great success.