Tub drain fixture leaks!

[Deb Mac]

Well I’ve got the toilet and waste valves in, fixed the leak at the grey tank, installed the vent through the wall and poured 3 gallons of water into the tub.
The new plumbing is all great, but…..

The tub is really slow to drain and there is a leak that shows up dripping through the cover that vents the fan.

So having an iced tea then I will pull that cover off and see what’s what in there.

Plumbing metastasises!!!!!