Difference between Polaris backup valves?

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
22,134
Northern NJ
Pool Size
35000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
The G59 is described as a “double acting” backup valve. It runs twice as fast and backs up the cleaner more frequently.

The G52 is said to backup every 2 1/2 minutes. The G59 backups approximately every 1 minute 45 seconds.

I think the G59 is used in smaller pools where the cleaner gets stuck in a corner more frequently.