I'm designing a drain-waste-vent system to handle two baths and laundry. I'll be tying into 4" ABS sewage line, that has a 2 inch vent (See figure 1). It's a Single story house with crawl space, in Southern California with very moderate temperature. All venting will go straight up through roof.
- Are there enough vents (i.e. does the washing machine need its own vent)?
- Is the location of the vents correct?
- Is the plumbing sized correctly?
- Any problems with this design?
The floorplan for Bathroom B has changed and now I have a new design. Many thanks to forum participants for all their tips. Please let me know if I am on the right path to a good and UPC code worthy design. Is the venting correct?