-
Worth asking the other flats if they have slow draining toilets still.
If the blockage is in a shared part of the system (further down) then at least its not just your problem to deal with. Although I would assume that any kind of root ingress/collapsed pipe/ small blockage issue on a high usage pipe (shared building etc) would surface a pretty obvious problem and become a serious blockage pretty quickly.
Can you lift the inspection cover and take a look out front?
andos-
Out front there's a pit drain thing that has a bunch of pipes going to it IIRC.
It doesn't look like sewage waste so I think it's just waste water from sinks and stuff. I assumed the sewage went elsewhere otherwise the multi-pipe pit thing would be full of shit and reek.
I might send the prettier half to ask upstairs and/or email the management dudes to see if anyone has mentioned anything else.
Might try and have a look at the drain outside myself too.
hippy
Thanks. We're ground floor. The last plumber said it might be simply because the flats above are sharing the same pipe further down. I know there's water access and some kind of drain out the front of our place which might provide scope for inspection/cleaning.