Hi we've been living with an insanely loud humming noise for over a month now. Anytime any water faucet/washing machine/toilet is running, a loud humming sound occurs.
The only change we made was change the kitchen faucet, but I don't remember if the noise started immediately.
Whenever two water sources are on at the same time, this eliminates the humming sound. I have tracked the humming sound, seems to be the water pipes going back to the main water line valve, which is close to my water heater. The hot water pipes clearly vibrate more when I open a water faucet. However, the noise occurs with cold or hot water faucets.
In case it was air trapped in the pipes from changing the kitchen faucet, i have tried several times to turn on all the faucets in the house in systematic function and let the water run so that it would push any trapped air out. This failed to solve the problem.
I then closed the main water line and drained all the water from the pipes but opening all my faucets, and that failed to solve the problem.
I have tried shutting the valve at the kitchen faucet for both hot and cold water, and it still makes the noise, so I am guessing that the new faucet is not the issue.
I have heard that toilet ball cocks are the main culprit for this kind of noise, so could it really be coincidence that I changed the kitchen faucet near the same time the noise started? Could changing the faucet have changed the pressure in the pipes?
What should I do?? Please help!