Pros: Easy to replace – low maintenance
Cons: None yet but will update if I do…
First and foremost, I decided to purchase the lower priced ($33.99) Zodiac 9-100-1204 (which fits the Polaris 360) instead of the Zodiac -G53 ($47.99) (for Polaris 180-280-380-3900) it is the same part.
I noticed that my Polaris 280 pool sweep was acting strange, not hugging the floor and moving very slow. After doing a Google search “polaris pool sweep floating” I found a youtube video with a pool man pointing out the culprit, a worn out “back up valve”. If yours is defective it will shoot out a constant high output volume of water. It’s suppose to cycle, having little to no output for approximately 2 minutes followed by a 45-60 second surge. This helps prevent the device from getting stuck and creates unique patterns.
Replacement is simple and takes just a few minutes. If you have an older stiffer hose you’ll want to cut off the ends and place them in some very hot water. You can also access the defective part without removing the hose ends. Just unscrew the ring-nut, pull off the top housing section, extract the gear mechanism and replace the new part without pulling off the hoses. Make sure you have some silicone lube and apply a little on the o-rings.
Note: The G52 is the entire assembly (gear & case) – G53 is the gear mechanism only – G54 is just for the case or housing.