This applies only to snap-in jet inserts. Beginning with 2013, new spas use jet inserts that screw in and are unlikely to pop out
Some jet inserts are designed to rotate about a half a turn in order to turn on or off water flow. They are also designed to come out if you turn them past the attachment. When a jet insert is turned past its attachment point, it can be easily blown out of the jet body with water pressure. To prevent this, rotate the jet insert only as far as it will easily turn until it hits the stopping point.
A jet that keeps popping out may not be pushed in all the way. By pushing in on the jet insert, you should hear a click. This indicates that the insert is installed all the way into position. If there is no click, the jet is in the wrong way and will pop out.
Sometimes jet inserts weaken over time due to constant exposure to water and chemicals. If the jets are subjected to extreme chemicalconditions or abuse, they will weaken and fail.
If the jet insert is a replacement, if it is the wrong size or type for the jet body, it will not stay in place. Change the insert to the correct size or type. Many inserts look alike and have the same size face. The nozzle in the back is where the clips are located and is what has to match the jet body.
This applies only to jets that are designed to rotate to allow water pressure to be turned on or off. Some jets are fixed in place and are always on.
Jets that are designed to rotate should do so easily. Tightness in jet rotation can be caused by age, chemical or calcium build-up, or improper insertion. If a rotatable jet does not turn, it may be stuck. Grip it firmly and rotate it counter-clockwise until it snaps and pops out of the jet body. Remove it and clean it thoroughly, then replace it in the jet body. It should rotate more easily after cleaning.
This refers to jets with a spinner in the center that work with water pressure and not to jet rotation, which refers to turning on or off water pressure.
Is the jet insert completely open?
Some jets are able to rotate in order to open or close them. Rotate the rim of the jet insert o turn the jet on.
Is there water pressure to the jet?
Listen for the sound of the motor. If the pump isn’t running, try pushing the JETS button on the control panel. If the pump that supplies water to the jets is on low speed, there won’t be enough water to operate the jets. Press the JETS button to activate the pump on high speed.
Check the water diverter valve. It may be diverting water away from the group of jets you want to use. Diverter valves direct water towards the jets to allow water flow to reach them. Experiment by turning the handle on the valves to see where the water goes.
Does the jet contain a spinning type jet insert?
Jet inserts come in many different shapes, sizes, and styles. Spinner jets usually have an internal component that spins or causes the water to spin. If the jet insert doesn’t have that component, the jet will produce water flow but not the spinning action that is usually associated with spinner jets. Change the jet insert to a spinner type of insert (if applicable) to achieve spinning action.
Is there intermittent spinning action?
If the spinner insert hangs up or spins slowly, it is probably due to debris in the spinner insert.
Remove the jet insert and clean the debris out of the spinning mechanism. Use a spray hose to spray out grit from inside the insert. If it still turns intermittently, the insert will have to be replaced.
Long hair or lint can also wind up around the shaft of the spinning insert and cause a slowdown in spinning action. Turn the insert shaft counter-clockwise to unwind hair and long debris. Replace insert if necessary.
This may indicate a problem with water pressure. Check water pressure troubleshooting on that page.