Bathroom drainage problem

Joanie Mac · 2 Mar 2021

I've been undertaking updating my bathroom over the past few weeks, it's been slow progress as I've been doing most of it myself and has certainly been a learning curve!

After filling up the bath to seal around the edge, I pulled the plug today to drain it but the water didn't go anywhere. I could hear it gurgling up the sink u bend but not down to the actual drain. I then realised a couple of hours later that the bath waste was leaking which dripped through to my downstairs neighbour causing his electricity to short but that's another story!

After using the sink today, I realised it was coming back up the bath waste pipe and leaking out.

I don't really know how to go about investing it and am confused about what has happened. It wasn't blocked at all before I took out and replaced everything and the water isn't draining at all, it's not like it's just draining slowly. Any advice welcome!

Sonic70 · 2 Mar 2021

Have you left a rag or something in the pipe while you were working on it to stop smells from the drain coming back into the room?

Victor

gasbanni · 2 Mar 2021

Follow the pipework you've done trace it, the sink pipework and the bath pipework can be teed in together in to one other pipe .....where does it go.
I think you've made a fundamental error !

CBW · 3 Mar 2021

Anything dropped in and lodged itself in the pipe?

Joanie Mac · 3 Mar 2021

I didn't actually do anything to the pipework itself, just took out the old fixture and fitted new ones in the same place. The bath was disconnected for a while as the room was being plastered and I was decorating but I made sure to unscrew the first bend in the waste and clear out any debris that could have fallen in there. I didn't use any rags or anything like that. Also, I don't understand how the water is flowing form the bath to the sink and vice versa and not down the drain. I've attached a very basic diagram of the layout with the waste pipe in red.

ETAF · 3 Mar 2021

The bath was disconnected for a while as the room was being plastered

I don't understand how the water is flowing form the bath to the sink and vice versa and not down the drain.

Based on your diagram , the join between the Sink and the bath by the wall - from that joint out the wall and down to the drain, maybe blocked , perhaps Plaster has gone down that pipework and blocked ?

Sonic70 · 3 Mar 2021

If there's a blockage in the pipe or no connection to the pjpe that goes through the wall to outside then waters got know where to go but flow between bath and sink. I would check under your bath first to see if you are still connected to pipe going through wall then check pipework for a blockage.

Joanie Mac · 3 Mar 2021

I'm definitely still connected so there must be a blockage after the pipes meet. I'm just so confused about how it happened but never mind! How do I go about sorting that? Do I need to get one of those claws? (Please excuse my ignorance!)

ETAF · 3 Mar 2021

was that area open and free for plaster to get in, having had various rooms plastered , with 3 different plasterers companies , We had 2 companies that made a hell of a mess. Hence why we ended up with 3rd company
How does the pipework join, If its leaked downstairs, then there is an issue with leaking , NOT just unblocking

Joanie Mac · 3 Mar 2021

eta said:
If its leaked downstairs, then there is an issue with leaking , NOT just unblocking

The leak was my fault, I hadn't connected the waste correctly and it initially didn't leak so I walked away and didn't realise the water was coming out for a while.

It was uncovered but my plasterer didn't make too much of a mess plus I did unscrew the bend and clear it out before reconnecting anything. I am flummoxed!

Sonic70 · 3 Mar 2021

I saw a guy in USA on YouTube who put a rag in a pipe and a rat had pulled the rag further into the pipe and chewed it up, he only realised when water wouldn't drain.

Sonic70 · 3 Mar 2021

Do you have a picture of pipework under bath?

just pumps · 3 Mar 2021

Tap pipe with knuckles, an empty pipe sounds diffferent to one full of water.

Hugh Jaleak · 3 Mar 2021

Where does the pipe go to outside?

Baths'N'Gas · 3 Mar 2021

Blockage in the pipe
Fall isn’t enough or falling the wrong way

if the pipes are clear and falling the right way, put a non-return on the bath waste pipe

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Bathroom drainage problem

Joanie Mac

Sonic70

gasbanni

CBW

Joanie Mac

Attachments

ETAF

Sonic70

Joanie Mac

ETAF

Joanie Mac

Sonic70

Sonic70

just pumps

Hugh Jaleak

Baths'N'Gas

DIYnot Local

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