Floor drainIs this for a floor drain?Or a fixture trap.
Then yes you can go more than 24 inches for floor drains 3 inch or larger.Floor drain
If its 2 inch no? Also is it written in the ipc code book? I couldn't find it.Then yes you can go more than 24 inches for floor drains 3 inch or larger.
I should have said for traps 3 inch or larger I believe you may be able to reduce to 2 inch on the inlet side of the trap.If its 2 inch no? Also is it written in the ipc code book? I couldn't find it.
I see. So if it has no trap primers then the 24 inch code applies.I should have said for traps 3 inch or larger I believe you may be able to reduce to 2 inch on the inlet side of the trap.
The trap primer does not determine the length of the trap inlet so if your trap is 3 inch or larger you can have the inlet side of the trap longer than 24 inches.I see. So if it has no trap primers then the 24 inch code applies.
Thats the way I understand it. If the vertical is greater than 24 inches then you risk the water creating the seal being sucked out of the ptrap. But cwhyu2 is saying other wise. All I want to know is if the trap has a trap primer if that would exempt it from that rule. If you say it does then where in the code book does it state that.In a straight drop, gravity can let the water velocity get high enough that the it can potentially have enough inertia to empty the trap if that fall is too great. While I may be wrong, I think that's the reason they limit the length of the drop to the trap. Once the waste is past the trap, as long as it is vented properly, it can't go fast enough to empty the trap. The size of the pipe doesn't matter...gravity works the same in a 2" pipe as it does in one larger or smaller.