I have an existing wet vented ejector system in my basement floor. I am planning on adding a washing machine drain to this system and have some questions about the best way to do this.
I have an attached proposed diagram to help explain the system and questions that I have.
If anyone has better suggestions - feel free to suggest and I can update the diagram :}
My questions about this proposed rough-in:
1. Can the washing machine vent "C" share the stack with ejector pump?
(best if it does not, but I do not have another accessible vent)
2. Does this washer drain need to be vented in the first place?
(since rest of system is wet vented - will add or not adding the vent cause trap problems?)
3. Curious, can vent “C” be 2" pipe instead of a standard 1 1/2" pipe
(Is there a reason that standard vents are 1 1/2" for flow, etc.?)
4. Should I vent sink “E”? or leave it wet vented like the rest of that system?
Will venting cause problems pulling the traps?
Thanks and look forward to recommendations!