I'm currently using Baquacil for my new 24' round AG pool. It's only been up since April 2011. Started out clear and beautiful....after about 8 weeks started clouding, got algae .... cleaned the filter, added more chemicals, got fairly clear.... then intense heat - several 100+ days, had to add well water to top it off, stayed cloudy, then had massive rains and had to drain off a couple inches. Two weeks ago, went to vacuum with basic pool vac, stirred up the bottom, pool got cloudier and cloudier, went green, hasn't been clear since. Went to different pool store, asked about switching to chlorine, they said 'don't add anything else but algaecide, keep diluting the water, vacuuming, etc., come back in a week and we'll test for chemicals again' .... i want to replace the cartridge filter once i switch over, but now not sure if I should drain off several inches and add more water, which has minerals and metals, which will continue to turn it colors. i don't know if i should keep draining and adding and go completely to salt or just go to chlorine. Is salt better for a pool in the south that doesn't get shade? or will chlorine be fine? i just want clear water!! what should i really be doing now?