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sink back up

We have a kitchenette that is directly below our main kitchen upstairs. If I allow the water to drain too fast it backs up into the basement kitchen sink and then the basement shower. How tDo I solve this problem. The house and most of the plumbing are 50 years old.

Re: sink back up

Start with snaking the line from your main kitchen down.

Re: sink back up

Snake the line from the lower kitchen as the line must be clear from the upstairs sink to allow it to reach the one downstairs. The stoppage is below the lower sink.


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