I’ll look into this Hugh. Don’t have a ladder long enough to get to the top of the stack. Cutting the pipe could be an option with in my abilities. Thank you
Good advice
I wonder if it could’ve a vent issue’ should there be more than just the one at top of stack and could that cause the issue? Possibly the previous owner did a bodge on the plumbing...
I’ve tired a standard bottle trap and an anti syphon bottle trap, both same issue. If I connect trap to basin but not to waste and turn on tap it flows out of trap perfectly...
Slow drain basin – no block
I have a bathroom basin with a really slow drain. I have taken apart the bottle trap cleaned and tested all works fine. I have used a hosepipe To blast water down the waste pipe without bottle trap connected and water can be heard training in the soil stack with no...