Noisless soil pipe system?

[Abdullah Eyles]

I have seen what is claimed to be a "noisless" soil pipe system at a trade show.

It is made by Wavin plastics, but I couldn't find any mention of it on their web site.

My question is this: How can a single-wall pipe be noiseless? the water flows in it just like others, I suppose...

I am thinking to replace the pipes (from upstairs toilet) in my downstairs toilet with the noisless ones, but am wondering if this is just a sellers claim.

They say that they are good for hotels etc.

[dg]

Its a gimmick.

By the time you have boxed in the stack you can't hear a thing from the stack.

You could insulate the boxing with rockwool if you want to be doubly sure.

dg

[Alan Campbell]

Hi,

My stack is boxed in and insulated with rockwool but you still hear it occasionally - but not enough to annoy me. Although if it were in a bedroom it would...

I believe cast iron pipes have good sound insulating properties.

alan.