I have an in ground gunite spa and recently one jet became strong and the others week. Upon investigation and removing the directional eyes, one of the recessed jet nozzles is missing.
This jet nozzle has a 1/4" hole and has a thread on the end. The only issue is the thread has just a single wrap around the end, meaning the threading doesn't make 4 or 5 revolutions around the end of the nozzle, it's just one wrap around the end. I can't find anything online with a thread pattern like this. I can find ones that are fully threaded or twist lock. Has anybody ever seen this? Looks exactly like a waterway Venturi Tee Nozzle except those has a full thread pattern (meaning 5 or 6 revolutions of thread).