Underground drainage leak

[jaydebruyne]

ground floor toilet was fitted without a stub stack, has its own drainage to the manhole. Owners want to sell so had to fit a stub stack for building control to pass it.

Fitted the stub stack, did a wet test and Water is slowly draining. I’ve checked all my joints and they’re dry.

Any way of finding the leak by any other means???

 

[ShaunCorbs]

Dye but you need access to the joints

 

[jaydebruyne]

Is there anyway the toilet would be slow draining to fill the pipes and eventually stop? (I’m basically filling the run with flushing the toilet.

 

[ShaunCorbs]

?

Only reason why it would be slow to draining is a blockage or maybe a split/ collapse

 

[jaydebruyne]

?

Only reason why it would be slow to draining is a blockage or maybe a split/ collapse

Here’s the thing..

I flushed the toilet until the pan filled to the brim. Filled the basin bossed into the run. Slowly drained. Did this 8 times and now ... completely steady, not draining at all!!

 

[ShaunCorbs]

With your bung in ?

 

[jaydebruyne]

With your bung in ?

Yup. Bunged discharge at the manhole and fille from toilet. Drained 8 times then stopped draining.

 

[ShaunCorbs]

Did you air test it first and what's your drop ?

 

[jaydebruyne]

Did you air test it first and what's your drop ?

Building control ain’t interested in an air test, for them it’s either air or wet, and I don’t have the air kit

 

[ShaunCorbs]

So it's staying steady / not draining over an hour ish ?