I’m replacing the evap lines and found something odd…
The large tee fitting closest to the tank, circled in this diagram
Is blocked on the return (smaller diameter) side of the Y. It looks like a manufacturing defect as I can’t see a hole inside the fitting where the Y joins, just a tiny pin prick of light, so any thing that needs to drain through that side would be very slow to drain. The other two tees have the junction fully open.
Is this right? Or should I use file and open up that tee?