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The booster pump for my Polaris 3900 died. I decided to abandon the Polaris rather than replacing the pump. I figure that I should cap the outlet at the pool wall if I'm going to remove the Polaris. I see that universal wall fitting (UWF) plugs are available. Using this would require removing...

Removing the restrictor disk fixed my problem. Thanks, all.

RPM is 29. The tail sweeps if I hold the wheels above the pool floor. When I drop the unit back to the floor, it stops. I checked for an obstruction at the end of the tail and didn't find one.

I have a brand new Polaris 3900 which gets stuck in one corner of the pool, at the stairs, and just churns. The reversing valve will kick in and pull the unit back about 3 to 5 feet but after that it heads right back to the same spot and repeats. Otherwise the power looks good, and the unit...

I'm less concerned about cleaning the stairs. More concerned about the cleaner bumping up against the stairs, getting stuck and spinning its wheels for an hour.

I have a fairly large freeform pool with stairs and a long bench. My Polaris 3900 died and I'm considering the Dolphin robotic cleaners. Are these cleaners able to cope with my type of pool? Are there certain models that are better equipped? The Maytronics site doesn't have good tools for...