
In the UK most/all kitchen and bathroom waste pipes are the white plastic. They have solvent weld and push fit options. 32 + 48 mm options (I think) Pressurised mains water is in copper or pex. The only law I remember is that you can’t put pex directly to your combi boiler - you have to have 6ft (?) of copper before any plastic push fit.





There’s this absolute banger you could give a listen.