Did you remodel your kitchen, add a new deeper sink, and now your P-trap no longer lines up to the street drain pipe going into the wall? In this video we will show you how to fix this engineering disaster when your kitchen sink drain pipe is too high for the P-trap.
In this example, we show you a cast-iron plumbing stack inside the wall that must have a section of it removed, then patched in with PVC pipes in order to lower your waste drain pipe coming out of the wall, s that it will line up to the P-trap. Now you'll be able to still install your garbage disposal and dishwasher.
00:00 Plumbing disaster overview of kitchen sink drain too high
0:48 Removal of kitchen sink base cabinet, cutting wall
1:53 Description of proposed plumbing fix for Kitchen Sink Drain Pipe Too High
2:37 How High should the kitchen drain pipe be off the floor?
3:42 Cutting through the top of section of cast iron pipe of the plumbing stack
4:08 Cutting bottom of the cast iron pipe of the plumbing stack
5:10 Extracting section of cast iron pipe, leveling off pipe cuts
6:45 Plumbing Fix: Splicing in PVC double sanitary tee fitting
9:00 Replacing drywall, patching, and painting drain wall behind the cabinet
11:00 Analyzing new lowered drain pipe and fitting to P-trap