Two Basement Sink Install w/undersink pump - venting

[djbarber2]

Currently roughing in two basement sinks (one for bar, one for workshop)...they will be on opposite sides of a wall. Trying to figure out how to vent this arrangement properly. I plan to have each sink on their own p-traps and separate drain lines into each side of the pump. I will vent the pump to attic, however, I've seen various codes that require the sinks drains to also be vented. I've attached a sketch of what I am thinking (circles are where pipes go into the wall). I would attach a double-Y at the pump drain and attach both sinks to it (with p-traps up stream), then I would provide a vent to the third leg of the double-Y which would then wye into the main vent stack coming from the pump. Let me know if I'm missing something..not sure if this "double venting" is really required.

 

[Terry]

The sewage pump needs a vent, and any fixtures dumping into the sewage pump need to be vented, the same as any other plumbing.

 

[Sponsor]

 

[Reach4]

You want a double fixture fitting rather than a double wye. https://terrylove.com/forums/index.php?threads/double-wye-used-for-double-vanity.53165/