My husband upgraded our downstairs hall sink faucet. I'm thrilled with the look of them -instead of a single handled unit we have a two handled unit, one for cold and one for hot water.
The problem is now whenever the hot water handle is turned on we hear this awful noise from the pipes. It doesn't happen when the cold water is used by itself or when the shower hot water is turned on in the same bathroom.
We think it might be air in the line, but aren't really sure and don't want to pay a plumber to do something we can fix ourselves. Any thoughts? If it is air in the line how do we get rid of it?