Trying to fix the hot tub that came with the house. I can't get any air to come through any of the jets. The pump motor spins freely, hoses are tight, wet end MILDLY drips a bit of water, but no cracks or contamination around threads or fittings / end pieces. I opened up the plastic pump (wet end?) that is attached to the pump motor, no broken or cracked parts. I did notice a small plug in the middle of the pump, do I need to initially open this up, thus priming the pump or do I need to do something else? I also noticed a "flow switch" attached to one of the pipes outside the heater control box. Does this in any way inhibit water flow? And yes, both shut off slides on either end of the assembly are pulled out and not restricting water flow. PLEASE HELP, need to get in the tub..........
Thanks,
Andrew

is it no air or no air AND no water? If you don't have any water, be looking for a clogged filter or suction hose (perhaps ahead of the wet end aka pump)

no air and no water flow. will check pipes and inlets and see what I can find, thanks for the reply!
A.