Jets not working

SOURCE: How can I unclog plumbing in whirlpool tub used to clean dogs?

Depending on how mechanically inclined you are, take apart the tub and clean everything out. No easy task, I know, but who want old dog hair floating around? That will be your best bet.

SOURCE: Bathtub jacuzzi (motor turns runs but nothing coming from jets)

Each Jet will have an adjustment many times right on the jet nozzle. Carefully try to rotate them counter clockwise to open up the jet. This assumes you can here the motor running.

Phil

SOURCE: Only 3 of 6 jets in jacuzzi tub working

Make sure the jets themselves are fully opened. Some models you can turn individual jets on & off

SOURCE: hot tub jets stopped working

yes my jacuzzi uses air on the suction side to make bubbles. you must have clogged it. how long is tube can you slide a rod in there to check if its blocked?

SOURCE: Black come out the jets when first operating them

Didn't fully drain at the end of last year, that gunk was mold, rust and gunk that's been sitting in the piping since last year. Not really a problem just remember to take a closer look at the plumbing on your tub next year and get all of the possible places that water may hold drained completely.