Hammerlane
Member
I have another thread on here about how to plumb a washer and utility sink into an existing 4" stack. My plan was to run 2" horizontally to pick up the laundry sink and washer after tying into the stack.
I talked with our local inspector here in Ohio and he said that any horizontal run to the stack after the washer standpipe has to be at least 3". He said the standpipe can be 2" but the horizontal run to the stack has to be at least 3"
I checked into the Ohio Administrative Code » 4101:3 Board of Building Standards: Ohio Plumbing Code » Chapter 4101:3-4 Fittings and this is what it states for clothes washers:
AUTOMATIC CLOTHES WASHERS
406.3 Waste connection. The waste from an automatic clothes washer shall discharge through an air break into a standpipe in accordance with Section 802.4 or into a laundry sink. 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. Automatic clothes washers that discharge by gravity shall be permitted to drain to a waste receptor or an approved trench drain.
So I wonder if running the 2" horizontally after the standpipe into the 4" stack will satisfy this code since the code says, "fixture drain shall connect to a branch drain or drainage stack a minimum of 3 inches (76 mm) in diameter."
The "or" part gets me. Looks like you have to connect into a branch drain OR stack of at least 3". well I'll be connecting into a 4" stack. I can't imaging I would need 3" for the run to the stack. How do you interpret this?
In the photo disreagrd the fittings they are not final yet. Just address the "green horizontal" run the will pick up the standpipe and sink then terminate into the stack.
Thanks.
I talked with our local inspector here in Ohio and he said that any horizontal run to the stack after the washer standpipe has to be at least 3". He said the standpipe can be 2" but the horizontal run to the stack has to be at least 3"
I checked into the Ohio Administrative Code » 4101:3 Board of Building Standards: Ohio Plumbing Code » Chapter 4101:3-4 Fittings and this is what it states for clothes washers:
AUTOMATIC CLOTHES WASHERS
406.3 Waste connection. The waste from an automatic clothes washer shall discharge through an air break into a standpipe in accordance with Section 802.4 or into a laundry sink. 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. Automatic clothes washers that discharge by gravity shall be permitted to drain to a waste receptor or an approved trench drain.
So I wonder if running the 2" horizontally after the standpipe into the 4" stack will satisfy this code since the code says, "fixture drain shall connect to a branch drain or drainage stack a minimum of 3 inches (76 mm) in diameter."
The "or" part gets me. Looks like you have to connect into a branch drain OR stack of at least 3". well I'll be connecting into a 4" stack. I can't imaging I would need 3" for the run to the stack. How do you interpret this?
In the photo disreagrd the fittings they are not final yet. Just address the "green horizontal" run the will pick up the standpipe and sink then terminate into the stack.
Thanks.
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