<https://www.allbuildingcontrol.com/ufaq/paragraph-3-60-of-the-approved-document-says-that-if-a-discharge-pipe-is-connected-to-a-soil-stack-the-discharge-pipe-should-be-either-polybutalene-or-cross-linked-8-polyethylene-does-this-mean-a-pol/#breadcrumb>
<http://schema.org/itemListElement>
_:n55093a506479447692a8ca5bfa13a1d2xb2
<https://www.allbuildingcontrol.com/ufaq/paragraph-3-60-of-the-approved-document-says-that-if-a-discharge-pipe-is-connected-to-a-soil-stack-the-discharge-pipe-should-be-either-polybutalene-or-cross-linked-8-polyethylene-does-this-mean-a-pol/>