My 9 month old play pool has two pumps.
1) Variable speed for pool/spa (Paramount in floor cleaning) or spa (heat and therapy)
2) Single speed 1 1/2 hp pump for skimmer/surface returns or waterfall (valve choice)
The cartridge filter only handles the water running through the variable speed pump...so water that gets sucked into the pool drain gets filtered before being returned to the pool through the floor cleaner heads.
The water that gets sucked through the skimmer is only "filtered" by the skimmer basket and the basket strainer on the single speed pump before heading back to the surface returns.
I can't help but wonder if I would have been better off if all the water circulation went though the variable speed pump/cartridge filter path (but not simultaneously of course). I realize this would likely have an energy savings benefit, but I'm more concerned with getting fine floating stuff out of the pool.
Pool is a normal sized (15,000 gal) with spill spa. Automation and all equipment is Pentair.
Any suggestions? My pool builder suggested that we put a sock-like thing on the skimmer basket to catch more fine particles, but is that the best "fix"?