answersLogoWhite

0


Best Answer

1/4" per foot. << Not really

Again the fall would depend on the diameter of the piping the WC is connected to

Normally 1/8 per inch is the standard Whe I install 8" lines or larger then 1/16 per inch is permissible BUT I cannot connect as many fixture units because of the little pitch

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the drop needed in the horizontal run of the toilet waste pipe?
Write your answer...
Submit
Still have questions?
magnify glass
imp