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Question DetailsAsked on 1/26/2018

i turned off kitchen sink water sutoff on hot and cold turn back on now no hot or cold water

I turned it off for few minutes

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Check no one else in family went and turned off the main shutoff valve to "help you" without telling you - or turned it off as soon as the leak atarted say - though if you have good water flow at any other faucet in the house that is not the cause.


You don't say WHY you turned the valves off, but unless the pipes were on the verge of freezing solid and the minor disturbance and vibration of turning the valves off caused flash freezing to occur, I will assume (since you said only off a few minutes) that they did not freeze up solid.


Or is there a chance the pipes were already frozen when you turned them off - did you run the water or have an active leak right before you turned them off ? If you turned them off because you had a dripping valve or faucet, is it possible that the drip was because the water in the line under the sink (commonly warmer than the pipe in the walls) was being pressured up by water freezing further down the line - this can cause leakage around seals and gaskets, and in some cases blow them completely out of position before the pressure gets high enough to split a pipe. If that is possible, or it is possible the lines to the faucet from the shutoff valves froze up under the sink (commonly near the outside wall), open the cabinet doors to let them warm up - keeping an eye on the area because if they froze solid you could have splits or leaks which will start up once it is thawing out. If pipes in wall might have frozen, (safely) increasing heat to them might be needed, sometimes just putting warm air in under the sink does the job if the freezeup poiint is close to the sink.


Assuming freezing is not the cause, probably next most common cause is a dish sprayer hose nozzle valve problem - in some models with the valve below or in the faucet they can get vapor locked when you turn off the water and then turn it back on, as can some cartridge models of faucets. Try opening the faucet(s) full open, then operate the spray head several times - that usually frees it up, though I have had cases with cartridge type single-handle faucets where I had to turn the shutoff valves back off, then open the faucet full open (both hot and cold), open the valve just a trickle and operate the spray nozzle to free it up, then open the valves the rest of the way. With other models, you have to turn the shutoff valves off and then loosen the spray nozzle connection enough to let the pressure drop off, open the faucets wide open, retighten the spray nozzle, then reopen the shutoff valves and let water run through the faucet before operating the psray nozzle.


If that does not do it, then you would have to turn them off, disconnect the supply tubing from the valve to the faucet, and then (with bucket handy) open the valve a bit to see if water comes out at good flow - if so then problem is in the faucet which may have to be disassembled, or remotely possibly if you have crudded up pipes, debris got into the tubing and blocked it - though that will very rarely totally block the flow. If no water from the valves, then incoming line is turned off or frozen solid, or if yuou have really crudded up lines possibly the shutoff valves crudded up in the process - but not likely to happen to total blockage for both at same time - as equally unlikely that both shutoff valves failed at the same time and are stuck open.


One other remote possibility - there was one brand MANY years ago which had lever-type shutoff handles which would turn either way, but the valve mechanism was a one-sided half-round disc in a half-round opening through the valve - so turn it one way (aligned with the pipe) and water was on, but turn it the other direction from the crosswise "off" position and it was still off. See if the shutoff valve (if lever as opposed to handle type) will turn 180 degrees from current "on" position.


Not knowing why you turned it off, but if you changed out the faucet or rebuilt the gaskets or seals in it, maybe (with new faucet) you forgot to remove the plugs in the ends of the tubing before you assembled it (some models have a clear plastic plug shoved in there to keep dirt out of the tubing), or put some part back in backwards. Some models you can install a cartridge or single-handle ball 180 degrees off (so the water holes do not line up right with the incoming water passages), on some ball types there is a plastic shroud which goes around the ball with water passages in it which can be installed wrong (better designs have a tab so it can only go one way). Remotely possible you freed up a bunch of sludge which blocked the faucet aerator/screen - see if you can unscrew that and test the faucet without it.


Otherwise, Plumbing would be the Search the List category to find a well-rated and reviewed plumber to come out and fix it.

Answered 9 months ago by LCD




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