Long story short, I wanted cartridge filter clarity without a cartridge filter. I came up with an idea, tested it, and now I want to share it with others. I performed a forum search before making this post and learned of the "Slimebag". Low and behold, the "Slimebag" is equivalent to my idea but much more expensive. I will post pictures within a few days but for now here are the details.
I have a 28,000 gal inground pool, 220 lb sand filter and 1 1/2hp pump rated at 70 gpm (probably only pushing about 50). I purchased 2 of part number 9830K21 from http://www.McMaster.com, this is a Slip-on Filter Bag Polyester Felt, 33" Height X 7" Diameter, 5 Micron @ $5.74 each. I purchase a 1 1/2" MIP to slip with a couple other pvc fittings and using a SS hose clamp, the returns feed through each bag.
These bags are glazed and are NOT intended for reuse. Regardless, when they are dirty, I put them in the washing machine with other shop towels and then put them back in place. Before the first machine washing, they worked awesome, I am now on the third machine washing and they are still working very good.
Our pool load consist of 2 adults, 1 6YO, and one 50lbs hairy dog and we swim almost everyday.
And yes, I see the same issue mentioned in some of the "Slimebag" post where if you hit the bag or when you remove it a cloud of very fine dust leaves the outer surface of the bag. Very small in comparison to the amount of particulate that the bag has captured.