Take the 2-minute tour ×
Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. It's 100% free, no registration required.

I recently moved into a new condo with 2 kitchen sinks -- a main one and one embedded in an island. There's a lot going on under the main one -- the cold water is split so that it leads to the faucet and the fridge, hot water split to lead to the faucet and the dishwasher.

When I turn on the hot water all the way (so there's no cold water coming out at all) the valve under the sink starts to vibrate very loudly. It sounds like a bad muffler! And if I open up the doors under the sink I can see it vibrate very quickly. It's hard to tell if the noise is coming from the water heater (which is right next to the kitchen) or the valve itself or maybe both. If I twist the handle slightly to let some cold water out of the faucet too, then the vibrating and noise stop.

This does not happen on the other sink (which is on an island and has its own line).

Any idea why this might happen and want I can do to solve it?

share|improve this question
add comment

1 Answer

up vote 1 down vote accepted

This is most likely due to a partially closed shutoff valve under your sink. Most such valves are designed to stop water but not to just reduce the flow, so if the valve isn't fully opened, it may be partially obstructing the water flow in a way that generates lots of noise/vibration. So check the valves supplying hot water to your sink and make sure they're completely opened.

share|improve this answer
    
that seems to have fixed it, thanks! the water was coming out strong enough that I guess I didn't even think that was the problem. –  statichippo Apr 29 '11 at 15:15
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.