Washing machine standpipe P-trap below floor

[alexlacelle]

I'm located in Ontario Canada and replacing my laundry room standpipe plumbing. I'm told that here I would be allowed to put the P trap below the floor (in my basement as opposed to the main floor laundry room). I tried searching for the rules regarding this but I cant for the life of me find anything.

Could someone tell me if this is in fact allowed, and if so, how tall the stand pipe can be from the P-trap? Surely if this is allowed the standpipe should be allowed to extend longer than the 30 inches I've seen referenced to under other codes? Furthermore, would I be allowed to run properly sloped pipe from the trap horizontally for any length then to a long 90 then vertically up into the laundry room?

This pipe will be vented and will connect to an existing 3 inch vent. I'm told this connection must be at least 6 inches above the flood rim for the washer. Is this correct or could I tie into the vent pipe in the basement as well, after the trap?

Thank you!

 

[Cacher_Chick]

There are some things allowed in Canada plumbing codes that are not in in the U.S., so it would be best to seek out the advice of a plumber from Canada. Here, the trap for the washer must be above the floor, and the vent must be vertical until it reaches a point at least 6" higher than the flood rim of the highest fixture connected to the vent. The standpipe and trap must be 2" and a 2" horizontal drain cannot exceed 8' between the trap and vent given a 1/4" foot of pitch.

 

[Sponsor]

 

[alexlacelle]

There are some things allowed in Canada plumbing codes that are not in in the U.S., so it would be best to seek out the advice of a plumber from Canada. Here, the trap for the washer must be above the floor, and the vent must be vertical until it reaches a point at least 6" higher than the flood rim of the highest fixture connected to the vent. The standpipe and trap must be 2" and a 2" horizontal drain cannot exceed 8' between the trap and vent given a 1/4" foot of pitch.

Thanks for your reply. I ended up plumbing it in the “normal” way, with the trap in the room. I couldn’t find any more details on putting the trap in the basement and I didn’t want to take any chances.