Repair to PVC soil pipe - techniques?

[AFP2]

A slash-and-dash "builder" working for the previous owner has made a town-halls of a soil pipe installation in the bathroom.

Basically, he fitted a collar to the 100mm soil pipe to accept an additional 32mm drain from an extra sink.

This collar was obviously not fitted properly, and there is a leak from it when the added sink is used.

So, is it possible to repair these? Clearly the collar is well stuck, but is there a means of getting it off? It would be difficult to replace the soil pipe due to its fitting into the screed.

Cheers

 

[Jc]

Try cutting it off with a thin blade(stanley knife) or a junior hacksaw blade.Clean up the area with very fine sandpaper and start again.

[Jc]

Another thought-Make sure the 32mm. pipe goes right thro' the adaptor.ie.ensure it goes well into the pipe and preferably the entry pipe should slope down.

[AFP2]

The spigot from the 32mm pipe is also glued in, so one cannot remove this readily.

I will attempt to cut the strap free, although this seems very difficult. It wraps round about 2/3rd of the soil pipe and is about 4" wide.

Sounds like blisterville!

Cheers 

[Anton Redman]

The only way I have ever made these joints work  first time is to wire them round the soil pipe before the plastic cement has set. Before resorting to cutting one off I would try. Getting all the saddle edges/ joints exposed then smothering them in plastic cement and give it 24 hours to dry.

[Choochoo]

Hi AFP2

I had this problem, use a hairdryer to thoroughly dry the area and while still warm apply a liberal amount of silicone around the strap, work it in with your fingers and allow to set for a couple of days. Worked for me, good luck.

John

[AFP2]

I might try to get the strap off first, and if it seems too difficult or nigh impossible, try the Silicone means.

Thanks for now.

[Jc]

Sounds as tho' the original bodger cut everything too short and tried to get away by smothering everything with goo.You can get a better quality of clamp-on fitting that does not require the goo-it clamps a seal directly onto the pipe and has a proper seal for the 32mm.both of which are fitted dry.You can also get a fitting that you insert thro'a hole in the large pipe.twist it and put a nut on the outside-no clamp required at all.

[Jc]

Another option would be to cut a complete section out of the 100mm. pipe and insert a fresh section including a connector either using a coupling at the bottom and a slip joint at the top or slip joints at top and bottom.Personally I don't like solvent couplings,I prefer dry seal myself.

[AFP2]

If only. we only have about 10mm each side of the clamp and there is no way of replacing this wihtout taking the whole pipe out. I have started to try and get the clamp  off and it is snapping off in bits slowly.