Dishwasher Valve Under Sink Leaking

It has no seal.

Dishwasher valve under sink leaking.

Under sink shutoff valves also called fixture shutoffs or stop valves allow you to turn off the water to the sink or other fixture without having to use the home s main shutoff. You open the sink cupboard door and oww. The leak is minor about 1 2 cup in a day. These inexpensive little valves rarely get used and when they do sometimes they leak.

Friction from continual use can cause the washers to wear out. I do not see any water leaking if i have the tap running and look under the sink but after a day s use of the sink i do see water under the sink. That inactivity can cause the neoprene washers to become either brittle or crusted up with mineral deposits and they lose their ability to seal leaks. There is water everywhere.

I have tightened the hose clamps of both the hoses but given that we are not using the dishwasher i don t imagine these to be a factor. If it is leaking under the sink cabinet it really is isolated to either the water supply to the dw or the draining action of the dw. The valve seat connects the spout and the faucet for the compression mechanism but water accumulation can cause it to corrode. Ignoring minor leaks can waste up to three gallons of water every day and can also lead to permanent water stains and rot under your sink.

If you see water leaking out this means the valve is leaking. It could be the valve that feeds the water from your home s main water line into the appliance. In some cases it s not the appliance itself that s leaking. Here are the possible causes.

However calling a plumber can be expensive. Don t panic it s a straight forward job that in most instances does not require any too. A decaying washer is one of the most common causes of sink leaks since every time the faucet is used the washer is pressed against the valve seat. It is very common for this to happen.

First rule out the less serious suspects. There are several potential causes for a dishwasher leak and associated water damage. The plumbing supply shutoff valves behind toilets or under sinks can go for years without being turned off and then reopened again. The shut off valve under a sink can go unattended for years without giving any problems but once it starts leaking it can lead to a mess quickly.

Start at the wall valve and look for leaks. Do you see water under the sink or below and under the dishwasher. Typically this shutoff valve is located under the adjacent kitchen sink where the water supply line branches off to the dishwasher. Look for the lower kick plate of the appliance and the inlet valve.

Check the valve very carefully for about 30 minutes with a flashlight and if you find it is leaking then remove and replace it.