 bbrcatCANCER SUCKSPremium,MVM
join:2000-12-09
NH
kudos:3
 ·RoadRunner Cable
| reply to Bob
Re: Water Hammer: Possible Causes? said by Bob:A bit of a long-shot, but... If you have an expansion tank on your water heater, make sure it hasn't failed and filled with water.
Not a longshot by any means. Mine had "failed" and had to be replaced after just 12 years or so.
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| How does one determine if the expansion tank has failed? Tap it and listen? Or is there another a procedure?
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BobAccount deleted
join:2012-07-22
New Jersey Reviews:
·Optimum Online
| said by sempergoofy:How does one determine if the expansion tank has failed? Tap it and listen? Or is there another a procedure?
Tapping it, if you have a good ear. Another way is to turn off the main water shut off, then open a faucet for a sink. If the water flows under pressure for a while (30 seconds?), the expansion tank is OK. If the water flows under pressure for just a few seconds, the expansion tank is no good.
Perhaps someone else has another way to test it. |
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robbinPremium,MVM
join:2000-09-21
Leander, TX
kudos:1 | said by Bob:said by sempergoofy:How does one determine if the expansion tank has failed? Tap it and listen? Or is there another a procedure?
Tapping it, if you have a good ear. Another way is to turn off the main water shut off, then open a faucet for a sink. If the water flows under pressure for a while (30 seconds?), the expansion tank is OK. If the water flows under pressure for just a few seconds, the expansion tank is no good. Perhaps someone else has another way to test it. The expansion tank should have an air valve on it like a tire does. Turn off the water and open a couple of faucets. Then use a pressure gauge to check the pressure. It should be set a few psi lower than the water pressure of the house. Best to use a bicycle pump if you need to add air to it as it is very easy to add too much when using a compressor. |
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