I've had my pool for about a year. It's an above ground, 11.5k gallons, with a sand filter. This forum helped me get the algae cleaned up but now i have a different problem. Where i live there is a lot of fine dust. This dust settles to the bottom of the pool and if it is stirred up it creates a cloudy pool. Apparently my sand filter can't clean the water even when i vacuum to the filter. The vacuum picks it up but you see a cloud coming out of the return line into the pool. Yes i could vacuum to waste but then i'd be filling my pool every other day. My question is---Is it possible to install a cartridge filter inline with my sand filter? This would let the sand filter pick up the larger particles(bugs, grass, etc) and let the cartridge pick up the dust. I don't know if it would be worth using two or just replacing my sand with a cartridge filter. I would like to use a DE but i don't want to back wash into my back yard and just have powder all over the ground.

Do I need to just switch over to a new type of filter? Do i have something wrong with my sand filter? Do they make a 5 micron pool filter to put in line with my sand filter? Hope someone can help.

thanks
tc