Discussion Starter · #1 ·
I have a detached garage with a finished upper. Currently no water supply or drain. Residence has lift station in basement that ejects all waste 200 feet to street with 15' head. I want to get a small bathroom in the upper of the garage. Is it acceptable to install a second station in garage lower that ejects to a wye tied into the main ejection line of the residence about 50' from the residence station? Of course a check valve ahead of the wye at the second station just like the check valve in the residence. Pump in second station would be slightly under-rated of that in the residence. Any comment appreciated.