Kitchen sinks will not drain
Posted by Char on November 18, 2001 at 06:37:09:

Please help. The sinks in my kitchen would not drain so and the draining water was coming up through the vent pipe. On the advice of a friend, we cut the vent pipe and for a few weeks, the kitchen sink would only drain into our carport through the vent pipe. The stuff coming out, at times looks like crude oil and smells terrible. We decided today to cap the vent pipe, hoping that if the water had no-where else to go it would force the clog out to the main drain.That backfired, it now comes up through the the sinks. If we try to run water in the garbage disposal, it comes back up in both sinks when the disposal is shut off. We have poured Liquid Fire into the sink without the disposal when it was free of water several times in the last few weeks. It seemed to be doing something, as black rancid liquid was coming out of that pipe.
Tonight, as we were attempting to run water into the garbage disposal while holding a plug into the other sink drain,the plumbing inder the sink broke at the p trap and black, terrible smelling (looks like crude oil) poured all over the kitchen. I am attaching a diagram of the kitchen and washer and main line areas.

Thank you for any help that you can provide.

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