I think 6 returns may be a bit overkill for that size pool. You will get your filtered water distributed throughout the pool, but the pressure will be weaker out of the 6 returns and you may not get the surface action you need to push leaves and stuff toward the skimmers. Also, running the Intelliflo at lower RPMs the pressure out of 6 returns would be pretty weak.
I have only 2 returns and the circulation and surface action is great, anything floating on the surface, leaves, toys, Crocks find their way to the skimmers in minutes.
I have only 2 returns and the circulation and surface action is great, anything floating on the surface, leaves, toys, Crocks find their way to the skimmers in minutes.