Rainwater from bathroom gulley coming out of 2 pipes into manhole

[Oldgirl21]

I recently had my toilet pipe relined as there was a crack where it enters the external wall. I'm in a bungalow so there is a gulley that the bath, washbasin and rainwater pipe go into and that pipe and the toilet pipe then go into the manhole. I was told the gulley didn't need checking with CCTV as there was no connection between the two pipes but when it rained yesterday I lifted the manhole and there was rainwater coming from both pipes. Can anyone explain why this is happening if there's no connection please and do I need to get the drainage engineer back to carry out further investigation? Thanks so much in advance.

 

[Hugh Jaleak]

I'd be getting a second opinion. Unfortunately, I suspect if you get the original Contractor back, they'll either say there's nothing wrong, or they'll suddenly claim further work is needed, which will no doubt be expensive... Sadly there are too many Cowboys and Con merchants in the Drainage game, and I very much doubt they'll admit work they've already done wasn't done correctly!

If the WC and Gully are on separate pipes going to the chamber, then clearly there shouldn't be any opportunity for water to cross between them, and if it's allegedly been patched or lined to repair a damaged section, then even less reason for it to leak!

Whereabouts in the World are you? See if anyone on here can help.

 

[Oldgirl21]

The drainage engineer was sent by my home insurance company

 

[Madrab]

Time to get back to your insurance then and explain the issue to them, it'll be for them to deal with it. They may send out an independent assessor and get the work checked.

As suggested, if they have clearly stated that there should be no connection between the 2 but when water is sent down the gulley it appears in both then something isn't right.

 

[Jems]

Even if the WC and gulley pipes are intended to be separate, water can sometimes appear in both if there’s an unseen connection or a small breach. It would be advisable to contact your insurer and report the issue, as they may arrange for an independent assessment. You may also consider having a professional inspect the bathroom drainage, for example, this https://www.mesa-plumbing.com/plumbing/bathroom-plumbing/, to ensure all pipes and connections are properly sealed. Keeping a record of when and how the water appears can assist in identifying the source of the problem.

 

[HERTS P&D]

Will they travel to the UK and supply a free quote?

Andy