According to the International Residential Code, the maximum vertical distance between the sink drain and the entrance to the p-trap is 24 inches. Be aware that it’ll make a fair bit of noise dropping that far.

Can you put a 90 in a shower drain?

Quote from the video:
Quote from Youtube video: It's very hard for one of those metal snakes to get around the 90. And you actually may drill a hole through it. So it's better to put two 45 degree angles together to make the 90 degree angle.

How far can vent be from P trap?

Note: The developed length between the trap of the water closet or similar fixture and its vent shall not exceed four feet.



Distance of fixture trap from vent.

Size of Fixture Drain, Inches Distance Trap to Vent
1-1/2 3 ft 6 in
2 5 feet
3 6 feet
4 10 feet

How much fall should a drain pipe have?





¼ inch per foot

The ideal slope of any drain line is ¼ inch per foot of pipe. In other words, for every foot the pipe travels horizontally, it should be dropping ¼ inch vertically. Many drains either have too little slope or too much slope. That’s right, it is possible to have too much slope in your drain lines.