I recently filled my 17 ft AG 6414 gal Summer Escape pool that I overlapped with a Doughboy 18ft liner. It went green before I could get the chemicals right to add the salt. So I used 2 bottles 128 oz liquid shock to clear. Chlorine tablets, Baking Soda to adjust the alkalinity. Ph minus to adj Ph. I just added approx. 1.5 lbs CYA 2 days ago (none of which was done at the same time). After using a full granular 4&1 shock as the chlorine is being consumed by the levels being off. Todays Levels are zero CH, 7.4 ph, 60 Alkalinity, 90 Hardness, and im waiting on CYA reagent from amazon so no numbers there. I have yet to add the salt so the chlorine tablet dispenser and shock would be the only source of Sanitizer at the moment. Also, I'm in Southern Illinois where the rain was dumped on us all at once yesterday & I know my water is crappy they are working to replace our lines as we speak so we see rust coming out when I first turn on my faucets and shower some days. Pool clear with maybe a touch of cloudiness and a little grey powder sediment from shock that need will be vacuumed tomorrow.