Connecting to drains - Touble connecting to salt-glazed clay

mousezero · Post: # 65185Post **mousezero** Mon Jun 20, 2011 3:45 pm

My current patio is above the DPC which is causing a patch of damp in the corner of one of my rooms. I am in the process of adding a linear drain along the length of this wall to hopefully solve this problem.

I need to connect this channel to an old salt-glazed clay pipe (via a compact gully which I'm going to add - it's a dual system) however the clay pipe is half set in concrete. Is there any adaptor that I could connect to the inside diameter of this pipe to allow me to continue in plastic? Or do I have to chisel out the concrete around the pipe in order to attach a rubber connector.

Any suggestions welcomed!

Injured · Post: # 65186Post **Injured** Mon Jun 20, 2011 4:08 pm

The only way I know is as you have said carefully chisel off the concrete and make sure you dont break the pipe.

mousezero · Post: # 65187Post **mousezero** Mon Jun 20, 2011 5:35 pm

Thanks, I thought that might be the case but was hoping there was an alternative solution....

Mon Jun 20, 2011 5:37 pm

flowjoe is your friend here
it can be a thankless task trying not to break salt glaze pipes
LLL

jonnyboyentire · Mon Jun 20, 2011 5:54 pm

lutonlagerlout wrote:flowjoe is your friend here
it can be a thankless task trying not to break salt glaze pipes
LLL

Aint that the truth

flowjoe · Post: # 65190Post **flowjoe** Mon Jun 20, 2011 6:28 pm

Depends on the kind of pipework you have and how strong or wet the concrete was when it was poured, if your lucky it will be a farmers mix (3 sand, 2 sand, 1 sand) and it will fall off, if it was a strong mix and very wet it can be a nightmare.

We do have epoxy liners that we can glue a pipe or junction into place with without overly affecting the internal bore.

Not too cheap though

mousezero · Post: # 65205Post **mousezero** Tue Jun 21, 2011 11:00 am

I've had a play with the concrete and it wasn't the hardest I've come across, but it certainly wasn't an overly crumbly mix. I think it'll be a case of electric hammer chisel, hand chisel, lots of patience and keep the tea coming. I've got a good 18'' to play with, :;): , so hopefully I'll be able to free up enough end to attach a PVC-clay adaptor too....