It only happens in one of my bathrooms out of three.
When water is flushed in that toilet, the annoying and loud moaning sound in the pipe penetrates the whole house. Very annoying , and disturbing

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Originally Posted by sashal

it only happens in one of my bathrooms out of three.
When water is flushed in that toilet, the annoying and loud moaning sound in the pipe penetrates the whole house. Very annoying , and disturbing

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There are several things that you can do. 1) you can try adjusting down the flow at the angle stop under the tank, **or** 2) You can shut the water off and remove the three screws on the float ball and stem assembly,(see image). Pull it up and reverse the washer. Make sure it's seated firmly. Before you button up turn the water back on for a few seconds to flush out the supply. Reassemble and give it a flush. Sound all gone now? Goodluck, Tom