If it has a circ pump it is located in the middle of the control bay. Just about directly under the control box. It is mounted that you only see the back of the motor.
There is nothing in the conrol area but the 2 x 4hp pumps and the heater there is a abs plastic cover that hides the foam insulation and the pipes and that is the only place that i think it would be although that would be a stupid place to it as it looks hard to remove. There is also nothing on the balboa board about a circ pump or in the manuel but again the heater pipes i believe are not conected to either of the pumps because both pumps work on both low and high speeds and also if i put a hose in the heater water inlet where it should be sucking the water from i could see the water flow through the pipes and exit into the spa and it did not connect with any of the jets ( i checked that when i emptied it the second time). Thanks in advance , Mike
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Another method D1 used was a bellows air pump. It is located on the inside of the box were the circuit board is. If it is not running the spa will not heat. Which also means there is no bubbles coming from in the middle of the filter
I did suspect that but forgot to mention that one is broken and the other is on its last leg but i just figuered that they did not have enough power to flow water through the heater and that those were just for the ozonater and yes there is no bubbles coming from the middle of the heater filter. There is also a one way valve hooked up those 1/8 hoses should that be replace too i did blow through that and it was not clogged. So i think i already know the answer but just want to confirm it are you sure that the bellow pumps and the 1/8" lines are used to flow water through the heater. Thanks again , Mike