50mm stack expansion noises

[John D v2.0]

Hi all, just a quick question if anyone can help.

I have a new 50mm stack around 2.5m high for shower and basin upstairs. It runs in the corner of the utility room, all solvent weld and the washing machine will enter near the base.
It then runs into a 110mm pipe under the floor.

Due to expansion, when I run hot water it clicks where it's clipped and moves slightly. I did look out for suitable push fit expansion joints but couldn't find.

Any suggestions?

 

[Hugh Jaleak]

They are available, a little searching may be required. One example thus: https://www.drainagecentral.co.uk/5...MIyLv46cvy1wIVSRDTCh2MpQRwEAkYAiABEgIkr_D_BwE

 

[John D v2.0]

They are available, a little searching may be required. One example thus: https://www.drainagecentral.co.uk/5...MIyLv46cvy1wIVSRDTCh2MpQRwEAkYAiABEgIkr_D_BwE

So the movement end of that, will it actually take solvent weld 50mm pipe? As it looks like a push fit socket (but obviously the size is the important thing)

 

[Nige F]

It'll take the solvent pipe - chamfered end an a spray of silicone grease. Then a spray of silicone on the clips - it'll be all quiet then.