Any tricks for removing concrete fro around salt-glazed waste?

[jonjack]

Hi

I have a damaged salt-glazed bend at the bottom of my soil stack and so need to replace this.
In case I cannot remove this cleanly from the horizontal salt-glazed pipe that goes off to the manhole (unlikely I have read) then my plan is to cut through the horizontal section at some point ans then use a Fernco to join up my new uPVC.

Problem is the salz-glazed horizontal bit has quite a bit of concrete around it.
I gather this is a very dodgy area since trying to carefully remove the concrete generally results in breaking the salt-glazed pipe.
Is the general approach to just tap at it very gently and hope for the best?


regards
Jon

 

[stevetheplumber]

best with an angle grinder just keep cutting into the concrete to the depth of the pipe lots of cuts and tap away with a small sharp chisel

 

[Mike Jackson]

You can get a connector that slips inside the salt glaze to take plastic soil pipes. It's similar to a pan connector but in black. Saves having to clean the outside.

 

[fogarty]

You can get a connector that slips inside the salt glaze to take plastic soil pipes. It's similar to a pan connector but in black. Saves having to clean the outside.

I had the same problem last year and asked at a few merchants if there was something like this but was told nothing like it. have you got a link.

 

[Mike Jackson]

Drain Connector - Black - Drain Connectors - Waste Pipe & Fittings | McAlpine Plumbing Products

 

[jonjack]

Drain Connector - Black - Drain Connectors - Waste Pipe & Fittings | McAlpine Plumbing Products

Hi Mike,

Is it considered a last resort to use such a connector considering that it restricts the internal diameter of the joint and therefore increases the risk of blockage?

regards
Jon

 

[chris watkins]

Hi Mike,

Is it considered a last resort to use such a connector considering that it restricts the internal diameter of the joint and therefore increases the risk of blockage?

regards
Jon

I would only use it in the vertical where it is unlikely to give any problems but NOT in the horizontal where it would retain water & solids.

 

[Mike Jackson]

The restriction is minimal and I actually prefer them to using a rubber connection as there is no jagged edge for stuff to catch on. As Chris said I wouldn't use one horizontally.

 

[TBServices]

There is actually a method of repair for cracked drains that my old company used to do, it involves a fibreglass/resin sleeve and a balloon type apparatus. Pretty specialist stuff IIRC

 

[nicro3]

If the problem is a horizontal then a drain liner connector should be used. Not a plumbers problem normally.

 

[Whl4852]

Just smash out everything and reinstate! Can all be done in half a day! Forget trying to sneeze and the re lining idea. Reinstatement all the way! :30:

 

[Whl4852]

Sleeve instead of sneeze ^ sorry!

 

[tweakyboy]

Don't think they can be as bad a pan connector which will also fit! Some idiot used a 90 degree pan connector on the base of my parents stack to take it from cast iron to salt glaze. Surprisingly they never had a problem in the 10+ years it had been in there.