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boatbuilder,Was working on Show prep today, and just got on the forum.I've addressed that problem a few times for customers in my area. Very simple permanent fix, and you don't have to regulate your water level. Using a small amount of clear silicone sealant, fill the air intakes* - no more sucking, gurgling, or otherwise.Because of the nature of those jets, you'll never notice a difference. I've "Pepsi-challenged" customers, co-workers, and myself.If you would like more info on anything Bullfrog, including upgrades, PM anytime.*Put spa on "standby mode" first, and give the silicone at least 2 hours - so you don't have to do it twice.ICE: neck jets draw air at the jet themselves - they don't use the same heated-air lines from the equipment compartment. The equipment compartment lines do have check valves to prevent backflow into the equipment area.
But by doing that you're just plugging the hole and stopping any air addition to the jets altogether. Isn't there a better way? Where does the hose terminate?
Spatech - No, the only other way is to add tubing, and a way to secure it above the water line.Like I mentioned, this style of jet (direct, deep tissue - variable to lighter tissue) is not noticeably effected by a lack of air, because it is so direct, and very forceful. The displacement caused by the air induction varies from jet style to jet style - in this case NO ONE has ever been able to tell with air from without air. This method solves the problem without continued attention to the water level being just right.Btw - there is no hose connected to the jets in question - they draw a minimal amount of air right behind the JetPak.Boatbuilder,It's pretty easy to see, look at the four neck jets on the back of the JetPak. There's a small fitting with a hole in it on each neck jet - only one on each, can't miss it. Fill it completely, I try to make sure to get the silicone at least 1/8" into that fitting (so it stays in over time).It's much easier with the JetPak removed, that's why I suggest putting the spa on "standby" mode.
That what I was thinking, just add a hose to the end to raise the level where it draws the air.
I'd advise the owner to temporarily plug the hole in some way to see if he feels a difference in the jets with no air being drawn. If he feels no difference as you indicate should be the case then plugging he hole permanently with silicone makes sense.