shower waste and bath waste crisis

[potnoodlecurry]

had a horrible plumbing job done last year just been dealing with it now its need urgent fixing

other than the leaking shower trays on all corner and plaster on wall a cracking on stairs due to wall being weakened or moved due to wetness.

the bath waste pipe and shower tray is on one pipe when i pull the bath on the plug the water is pushed into the shower before it was just a small amount now after trying to plunge the bath a little as it was blocked the backflow is huge!

when i plunge the shower the bath gurgles the water flows then when the gurgling stops the shower wast stops flowing fast.

theres no slope the lovely plumber left a nice straight line of pipe. one could argue a slight incline sadly

i cant access the pipe work under shower but i maybe able
to access under the bath

perhaps i can run the shower waster seperatly outside as a single pipe ?


i cant rip out and start again any suggestions of valves or pipework i need to add im a amatuer DIYer help please

 

[75pete]

Got to say that's shocking! Just can't imagine any plumber fitting the wastes in such away were you get a back flush into the shower.
Yes you can rerun either the bath or shower waste. Or employ a plumber.

 

[Jackrae]

Shower waste may be accessible by opening up ceiling below