How come the few times I have drained my spa my thrid pump, the one that controls the 2 lounge seats get air locked. It is a real pain in the neck because it means I have to unscrew and take off the panels in my tub which is a real pain. Then open the union and let the air our.
Any reason this always happens?
On a side not, are all spa a pain in the neck to take off the pannels?