Can you all please look this over. We are just about ready to go with this project. I have just cut all of the concrete. Dug the hole for the sewage basin and I am now just wanting a review on this before I begin. This has been one long day of digging and cutting.

You are discharging a major fixture,(your toilet) past a unvented minor one,(your tub) and you can not do this. You'll suck the trap seal out of the tub trap every time you flush. You have two options, (1) Run a separate vent on the tub and revent back to the lavatory vent**or**(2) Connect the tub drain into the lavatory drain where it will be wet vented by it. Good luck, Tom

LASt question and thanks for the quick response. Does the Sewage Basin need to be flush with the concrete or can it be up three to four inches. I am very sore!!

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Originally Posted by wesryan

LASt quesion and thanks for the quick response. Does the Sewage Basin need to be flush with the concrete or can it be up three to four inches. I am very sore!!!

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The ejector tank can set at any elevation as long as the inlet pipe has slope back to the fixtures. I hope you're not "sore" at me LOL. Tom