Originally Posted by Carlos maldonad
do i need a back flow pipe when installing a roof drain and why?
You mean a backflow preventer? I may be wrong, but I've never heard of such a thing on a roof drain...
Backflow devices are commonly used in waste drainage systems to prevent sewage from backing up into the house or in potable water systems to prevent contamination.
Brad Penske, Operations Manager - Coeur d'Alene, ID
LateralCONCEPTS,LLC - Sewer & Septic Line - Video Inspection, Locating, Consulting
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.