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A blocked pipe. The water can not go down the pipe, so it comes out in your sink.

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14y ago
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13y ago

Drain line it's connected to is clogged.

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Q: Why would upstairs sink have water coming UP through the drain?
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Where does upstairs sink water and shower water drain to?

There is a main drain that runs from the basement through the roof where it is the vent for the system. If you look at the layout of the house, the upstairs bath is most likely over the downstairs one or the kitchen. If you look on the roof, you will see a 4 inch pipe coming through the roof that should be over the upstairs bath. The sink and shower drain into that and then to the basement and out of the house. Most likely the main stack is in the wall behind the toilet.


Why would cold water run up through a shower pan even though there is no drain blockage?

Do you have an upstairs tenant or the sewer is backing up.


Why is no water coming out of hot taps upstairs but there is downstairs?

Check the upstairs taps for blockage in aerator or internally.


When my sump pump stopped working why did the water pour out of the upstairs toilet and not the basement toiet?

because the upstairs toilet drain was clogged up.


No hot water from the upstairs sink tap?

Is the water not hot? Or no water coming out the hot tap? not comming out at all


How do you stop water from coming up a basement sink drain when the toilet is flushed upstairs?

Have a plumber snake out your drains.ANS 2 - Install a flapper valve section on the sink drain pipe so water can go down but not up - cheap and very easy to do.


How flush radiator 97 mustang?

Open the radiator drain and let drain into a catch basin. Run water through the radiator by filling through the radiator cap with a hose till the water coming out is clear. Fill through the overflow bottle if there is not a radiator cap present.


What is the cause of downstairs shower and floor draining backing up?

The main drain is plugged. Not completely, but enough that it is easier for the upstairs water to come out in the shower and floor drain instead of going out the drain.


Is there a shower drain with a built in check valve?

You can get a back water valve. It is similar to a check vale/ the back water valve goes on your main sewer line out side of home. It is desined to stop black water form coming into your home if main line stops up. Thay do make a device that can be installed into an exsisting drain it lets water through your drain but will not let water back up through you shower drain.


On my 1997 dodge ram pickup water is coming in the floorboard through the middle vent. Is there a drain somewhere I cannot find one.?

Check the AC condensate drain, it's probably plugged.


I need to turn off water how are the pipes not going to freeze and break through winter?

you will need to drain the storage tank == First, you turn the water off at the main, then turn on all the faucets and let them drain until there is not any water coming out. The absence of water will prevent their freezing.


Why is water coming into the car when you run the AC?

the drain hose is plugged