Patrick75
New Member
I'm rouging in for a washing machine and laundry tub in my garage. IPC code says:
"The trap and fixture drain for an automatic clothes washer standpipe shall be a minimum of 2 inches (51 mm) in diameter. The automatic clothes washer fixture drain shall connect to a branch drain or drainage stack a minimum of 3 inches (76 mm) in diameter."
I'm unclear about the specific definition of "fixture drain" and "branch drain." Do I have to transition from 2" to 3" immediately after the vent or where the laundry tub ties in to the drain pipe from the washer or can I do it at some later point? I'll be tying into my 3 inch main drain line in the crawl space about 30 feet from the washer. I was planning to transition to 3" for the 25' in the crawl space, but was hoping to stick with 2" for the part inside the garage so it would fit in the wall.
Is there an alternate way to plumb a washer and a sink under IPC avoiding the 3"? [eta: nm, i see 802.4.3.1. Not sure I want to do that, but would appreciate clarification about where I have to transition to 3" if I use 2 traps.]
"The trap and fixture drain for an automatic clothes washer standpipe shall be a minimum of 2 inches (51 mm) in diameter. The automatic clothes washer fixture drain shall connect to a branch drain or drainage stack a minimum of 3 inches (76 mm) in diameter."
I'm unclear about the specific definition of "fixture drain" and "branch drain." Do I have to transition from 2" to 3" immediately after the vent or where the laundry tub ties in to the drain pipe from the washer or can I do it at some later point? I'll be tying into my 3 inch main drain line in the crawl space about 30 feet from the washer. I was planning to transition to 3" for the 25' in the crawl space, but was hoping to stick with 2" for the part inside the garage so it would fit in the wall.
Is there an alternate way to plumb a washer and a sink under IPC avoiding the 3"? [eta: nm, i see 802.4.3.1. Not sure I want to do that, but would appreciate clarification about where I have to transition to 3" if I use 2 traps.]
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