Recently I found my washing machine hot water hookup drips slightly when the washer is not attached. I believe it is a bad valve. When the washer is attached, water flows to the drain and doesn’t cause any issue. I talked to a plumber and he said the cheap solution is to put a cap on the hookup when there is no washer attached, but if I really have to fix the valve then he will have to cut up the dry wall and it will be very expensive.
I don’t want the bad valve to affect the pipe in the wall (water corrosion etc.) and cause bigger damage in the future but also don’t want to spend the money if it is not necessary. I don’t know much about plumbing so I want to ask here to see what your guys say.
Should just let it stay like it is or repair/replace the valve?