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Originally Posted by ronanrn
Having repeated problems with push pull valves under faucet sinks. They close by themselves. Any ideas. This is a 10 year old house but new to us. Thanks
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Yes. This is not an unusual occurrence for push-pull (Accor) shut-off valves. More than likely it's failing and needs to be replaced. OR, it could be that the water pressure in your house is too high. If it's only one valve, I suspect that valve is failing. Unless you're comfortable doing plumbing jobs yourself, I would suggest calling a plumber.
The valves are not terribly difficult to replace (the worst part is getting them off). After turning off water to the house, the Accor's can be twisted off, although I prefer to use a small pipe cutter on the body of the valve. It does less damage to the water supply line. You'll want to replace them with a 1/4 or multi-turn shut off valve (probably what you're familiar with on previous homes).