Plumbing Diagram

[JWT]

I want to replumb a cabin to include a valve for recovering grey water to use for irrigation. Will the layout per the attached diagram meet code?

 

[breplum]

Not UPC (all I know).
A few non grey water tips first.
You only need a 3" drain for any home with up to three WCs.
1.5" vents only needed for everything but a WC.
Kitchen must have 2" drain and a cleanout...1.5" vent is fine as before.
The total vent area must equal the largest required building drain...so, total vent area is either 2- 2" vents plus an 1.5" or all into a 3" stack...but what you drew would still work, just not meet UPC.
No tee's on back for drain from WM, use combo.
I'll send a photo of UPC req'd graywater system.

 

[breplum]

This is how UPC requires greywater

 

[Twowaxhack]

We just dump it in the streets around here……..



Sewer overflow after overflow. It’s baked into the cake around here, no big deal.

 

[JWT]

Thank you for the response and greywater diagram, breplum. So if I make the changes you suggested this will meet UPC? Also, what does WM stand for and what is a combo?

 

[breplum]

Washing Machine = WM
Combo is a fitting consisting of a WYE and an 1/8th (45 degree) bend. In the case of most 2” drains (kitchens, laundries) 1-1/2” vents are allowed as long as the total vent area allowance is met for the building.

 

[JWT]

Thank you again for your help.
I've attached a revised schematic based upon your feedback. Will this one meet UPC?