Core Utility Panel Design Rationale
From Open Source Ecology
- Allow for 9 feet of flex from the top of stack vent so pipe has up to 2" of flex over the distance and thus can be prebuilt.
- Are rubber couplers allowed?
- Cap the top for extension to upper bathroom
- Frame Panel 1 flat so there is sufficient space for a 3" vent stack, not 4". Meaning 4" space exists if flat 2x4s are used
- Or use island framing, where studs are no t continuous but only islands
- 3" vent so ack is desirable, so we can go thru framing. OD is 3.5 leaving 1" on each side.
- Second floor toilet pre-plumb leaves from the top of Panel 1, and bends towards 2nd floor toilet sweep. Latch door is pre-set in 2nd floor prior to vinyl floor. Location is digitized, so this is replicable.
- Vent stack is above 2nd floor soil stack tee, where tee is 3-3-1.5' sweep. Vent is 2" or 1.5". 2" makes it extra unique part, to be avoided.
