hi,
We live in duplex unit and we have a issue of drain water backing out of the ground floor toilet whenever we flush, use shower or use water in any of the sinks. the only place water comes out is the ground floor toilet that has a outlet on the floor. Irrespective where we use water, it comes out of that outlet. And the water is dirty and smelly. We don't know where to use plunger or put vinegar, etc. What should we do?
hi,
We live in duplex unit and we have a issue of drain water backing out of the ground floor toilet whenever we flush, use shower or use water in any of the sinks. the only place water comes out is the ground floor toilet that has a outlet on the floor. Irrespective where we use water, it comes out of that outlet. And the water is dirty and smelly. We don't know where to use plunger or put vinegar, etc. What should we do?