I am having the following problem:
When I take a shower the bottom try starts to fill up to over my feet. Then
it takes ages to drain away.
I have tried putting drain un -blocker down the hole and leaving over night
but this does not help. I have also tried using a plunger repeatedly.
It does manage to get the water out, but when I take another shower
the tray fills up again. Also I got my garden hose up through the
bathroom window and stuck it down the shower drain hole and blasted a
good amount of water down it for about 5 minutes, but once again soon
as I take another shower I get the same problem.
Also, I have noticed that if I turn on the sink the water starts to come
back up the shower drain and starts filling the tray up!
Once I turn the sink tap off there is a lot of gurgling noises from the sink
and the water in the shower gradually starts to drain away.
Does anyone have any ideas why this is happening and how I can get it sorted?