PEX-AL-PEX for hot water return (manifold system)

[elvis80]

(Bear with me this is my first post on here...)

We're putting in a manifold system for the H+C in the bathrooms of our new house (self-build). What are everyone's opinions on using PEX-AL-PEX pipe for our hot water return system, please? Good or bad idea? The pipe says: Tmax 95 degrees C / 10 bar / ISO 9001. There's another code, but the piece I have only has 070M, then it's cut. Do I need to check the rest of it?

It's hard to find my guidance online.

 

[Jim Goodenough]

Hi All. I thought it was only polite to round this off... I opted to go copper for the hot water loop, but poly everywhere else. It was £400 for labour and materials for the first phase. It'll probably be just a bit less for the other side of the house (two-stage build). I thought taking the risk on plastic was a false economy for a house I'll be living in for 30yrs+. I saved the money by installing all my own waste / soil pipes (above ground) and supply pipes from the manifolds, plus the cold loop. It was a piece of p*ss tbf. Really appreciate everyone's thoughts and views.

Any pics of your install?