Apr 26, 2012 · Is the flexible drain line permissible for this sink? Also the two sinks have one P trap between them? Is that ok?

Dec 18, 2025 · Ribbed, flexible drain pipe was used at the sink. This type of drain pipe accumulates debris more easily than smooth wall pipe and is more likely to clog. Recommend …

Nov 12, 2015 · I’ve been marking flexible drain pipe as temporary plumbing recommend further inspection and repair in my report. The plumber has just advised a homeowner that it is …

May 31, 2014 · Flexible accordion type drain lines do not have a smooth interior surface and are subject to poor drainage conditions due to blockage and or sagging along the flexible ribbing. …

May 17, 2023 · Not sure what you mean by “point it out”. It is flexible PVC. Is it leaking? If there is no discernible issue just check the box for the material it is. When PB is present you just need …

Jul 18, 2012 · Bathroom Sink Flexible drain trap piping improperly installed. Recommend professional plumbing repair with replacement of the drain trap assemblies.

Apr 26, 2020 · Although a flexible accordion-shaped drain pipe is sold in home improvement and hardware stores, it is not approved for installation by plumbing codes, which require that any …

May 20, 2008 · Can you use copper flex pipping for the TPRV drain line. It extends down for about a foot connects to regular copper pipping and then out to the exterior. First time I have seen this.

Aug 10, 2009 · Improper use of an improper pipe Jeff, where is it stated that it’s “not approved”? Maybe I need to strengthen my report comment. All I’ve ever said about them (if installed as a …

Feb 11, 2020 · They sell corrugate (flexible drain pipe) drain pipe at the home centers and DIYers use it… However drain pipes must be constructed of pipes with a smooth surface, you should …