So there is a lot going on in this picture…
Amazingly the sink drained very well despite the large uphill climb. Seems to me that the siphon created by the large drop/climb would siphon the large P-trap almost dry but the smaller individual P-traps still worked as intended due to the placement of the Studor Vent.
What parts (if not all) would you call out as deficient?
Size of 2nd P-trap
Less 4" between Studor vent & waste arm
Thanks in advance for your insight