Everyone makes mistakes, but some mistakes can be costly and end up causing problems that only your plumber can fix. There is one especially important mistake to avoid that could compromise your drain line installation and cause serious clogs that bring down your plumbing system. Watch this video for a look at a critical error in intersecting horizontal drain pipes.
Drain pipes are responsible for removing waste from your home, but they can only function properly if they’re set up the right way. One of the biggest errors you can make is choosing the wrong DWV fitting. A T fitting creates a perpendicular angle between two drain pipes, so the waste doesn’t know which way to go. That’s why you need a wye bend with a sweep. You can use a wye bend with an additional side inlet, or you can buy one piece that has both components.