Guys - I have a problem with my spa. It's an inground spa connected to my pool built about 10 or 11 years ago. On occasion in the past it has stopped bubbling. The company who built the pool advised that the spa nozzles sometimes come loose and there was probably one that just needed tightening. This always worked, it was always the same nozzle and a quick tighten restored the spa to full function.
About a month ago it happened again I went to tighten the nozzle but it wasn't loose. So I checked others and they all seem fine.
Does anyone have a clue what might be wrong? I'm not sure how these things work. I have six jets and there seems to be good flow through all of them. The water heats fine, just doesn't have the spa jet bubbling thing.
Any thoughts or advice would be very welcomed.