I have been googling in vain for an answer to this problem but cannot find a solution. I have a Zodiac G3 Baracuda pool cleaner. The cleaner itself works OK for my kidney bean shaped pool save for one issue major issue:
When the Baracuda undulates to create suction, it also produces bubbles.
I have read many, many posts on suction side cleaners and obvious places to look for air, and have not found any of them to be the cause. I have the Baracuda connected to a dedicated pool cleaner suction line with an in-line leaf basket. I have checked the in-line leaf basket for air leakage by submerging it completely with my hands and tipping the chamber so all if the air goes straight into the pump. The leaf basket accumulates more air from deeper into the pool.
I have held every bit of hose and the Baracuda itself underwater so that not a single rib on the hose stays above the water line . It still creates bubbles that collect in the leaf basket. Further, I have held the Baracuda and all of the hose completely still in the dead center of the pool (it's like wrestling the Hydra) away from the sides and bottom and it still produces air.
I have removed the Baracuda head from the vacuum hose and the hose instantly stops sucking air into the in-line leaf basket. I can drain the air from the basket and no new air develops. Only with the cleaning head attached does it create air bubbles that go into the pump.
I have verified the amount of suction is correct at number 3 with the flow gauge that comes with the Baracuda. All parts are in good working order, diaphragm has even been replaced to no avail.
The only thing I can think of is the spa fountain, and waterfall that goes into the pool has somehow super oxygenated the water and the smack of the Baracuda diaphragm is causing some sort of cavitation to occur. But is that even possible?
Any idea on how to rectify this particular problem would be greatly appreciated. At least once a day the Baracuda gets caught on the steps or a return jet and I'm wanting to try a device like the Twister to see if it can shake it loose to make it a bit more maintenance free. The Twister states it won't work if the cleaner sucks air so I'm trying to rectify that situation.