Soil pipe 32mm/40mm/50mm (Marley?) replacement seals

[YorkshireMidge]

Situation is a flat with an enclosed and difficult to get to soil stack, with 32mm bathroom basin and 40mm (solvent weld) kitchen sink waste pipework draining into the stack from either side on push fits, and bath from the front on what looks like it might be a 50mm push fit. Pipework will be c30 years old, and the soil system looks like it might be Marley from the bits I can see of it in the loft above.

Whilst kitchen and bath are out during refurb, and access will be slightly easier, I was planning on replacing the seals just as a precaution, as I will be ripping out the old pipes and replacing those.

From the little I can see of mine, they look as if they might be internal O ring seals like this current Marley item (as opposed to the common type described as "boss adapters" which just shove into the end of the boss pipe).

http://www.marleyplumbinganddrainage.com/media/9091/2-sws415g.jpg

Are these replaceable and if so, where from?

Thanks!

 

[denso13]

Are these replaceable and if so, where from?

Not if the pipework is 30 years old. The newer ones are a completely different design to the old ones. Are they leaking?

 

[YorkshireMidge]

Not if the pipework is 30 years old. The newer ones are a completely different design to the old ones. Are they leaking?

No, they aren't as far as I can see Denso - so I could just give the seal a wipe of LSX just to be on the safe side when I refit the new pipes. It just seemed sensible to replace, if replacement was possible.

 

[Nige F]

I would be careful with that old Marley - they used to go their own way with pipe sizes and wall thickness. (and gutter, with slots cut to hold joints) Other makes wouldn't fit, apart from soil pipe which was standardized. Personally I would cut the waste pipes out, leave a stub and then join to new with Mac alpine universal compression couplings.

 

[Madrab]

I'd review the pipework and see how good it's condition is. If you have the chance though, then being able to update and future proof your system would be the most adviseable way to proceed, as @Nige F suggests.

If replacement is not an option then use a good quality silicone grease, you will soon know if the seal is going to be ok or not, the feel won't be right if it isn't going to seal properly. A good seal should grip the pipe nice and securely, if it's too loose around the pipe it wont be effective