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- 6 May 2021
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Could the forum please help with a problem I have with my bath tub plumbing. I have a bath with an overhead electric shower and recently the waste water has been increasingly slow to drain.
I tried the usual clearing methods (which didn't work). Today I've removed the bath waste trap only to find it is clear, as is the (half metre or so) 40mm plastic pipe to the soil stack.
Using a flexi-wire tool, I can detect what feels like a spring loaded flap about where it enters the old cast iron soil stack. When pushing the wire I could hear/feel it open and close, so assumed on re-assembly it would work again .... alas not and the bath is full of water.
Is this some sort of flap valve problem? Why would it prevent the significant weight of water in the bath going out? Looking at the Screwfix catalogue I can't see any plastic end connector that incorporates a flap. Surely the flap is not part of the cast iron stack?
Any advice appreciated.
ps. The soil stack is in an open section of wall at the drain end of the bath. I can reach it but it is difficult to access.
I tried the usual clearing methods (which didn't work). Today I've removed the bath waste trap only to find it is clear, as is the (half metre or so) 40mm plastic pipe to the soil stack.
Using a flexi-wire tool, I can detect what feels like a spring loaded flap about where it enters the old cast iron soil stack. When pushing the wire I could hear/feel it open and close, so assumed on re-assembly it would work again .... alas not and the bath is full of water.
Is this some sort of flap valve problem? Why would it prevent the significant weight of water in the bath going out? Looking at the Screwfix catalogue I can't see any plastic end connector that incorporates a flap. Surely the flap is not part of the cast iron stack?
Any advice appreciated.
ps. The soil stack is in an open section of wall at the drain end of the bath. I can reach it but it is difficult to access.