Originally Posted by afaroo
Hello Tom for my curiosity what will the toilet tank water level has to do with this, Thanks.
I've had this problem in the past. This is how I explained it in a earlier post.
What's happening is the water seeping past the flapper lowers the water level in the tank and the ballcock attempts to compensate. In time the water seeping out and the water coming in will balance out. The ballcock can't shut off and the sound you hear is the washer vibrating against its seat. The repair is simple. Replace the flapper. It can also happen when the tank level's just about to overflow into the overflow tube. Pop[ the lid and watch the float ball. Now turn on and off ,real quick, a cold water faucet, Did the float ball bob a b it? If so it kicked on the ball cock. When that happens it's possible for both the water coming in and the water seeping out to set up an balance causing the washer to vibrate. This can set up a synthetic vibration in the house pipes that will carry all over the house. The solution would be to set the tank levels and recharge the bathroom air chambers.
It all has to do with balance. If the water seeping is the same as the water seeping out then that washer's gonna vibrate.
Did that answer your question? Cheers. Tom