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I have what appears to be water hammer in a 18 yr old home. Water arrestors (the blue oil can) are installed. From what I've read, it seems like the solution is to remove the air from the water lines starting with shutting off the main water valve, then draining the pipes. If this is true, then can I simply shut off the hot water tank or does it need to be drained??
Please help!
Hey Diva,Quote:
Originally Posted by Do It Yourself Diva
It's not air in the line that's your problem, it's water logged air chambers, (water arresters). Back in the 60's we were required to to put shock absorbers,(air chambers) on all bath lavatorys and kitchen sinks. Over time water and condensate built up in them and they must be recharged. First turn off the house at the main house shut off valve. Then open hot and cold faucets at the farthest bathroom to prevent air lock.(This is important.) You will find under each fixture little brass or chrome valves. These are called angle stops. With a small pail held under the angle stop to catch the run off look under the handle of the stop and you will see a nut with the stem running through it. This is called the bonnet packing nut. Put your wrench on it and back it off counterclockwise. Now open the stop and remove the stem and washer assembly, The stop will begain to drain. When it has quit draining reassemble the stop and move on to the next one. Do this on each one of your angle stops. There will be six of them on a two bath home. When you are done, close off the faucets you have opened, turn on the water to the house, and give yourself a pat on the back.
You have just recharged your air chambers and saved yourself a hefty service call bill. Hope this helps you out, Tom
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