Looks about right. You can just use the full three bottles (8.25% bleach comes in 121oz bottle, not gallon bottles) to start it off. Test and adjust as often as possible, but give at least an hour between tests.Dave my CYA is actually 30, I tried to edit that number above and maybe it didn't go thru so from reading my SLAM will be 12, my FC right now is at 3 so I should add 275 oz of bleach if my calculations are correct so thats like 2 1/2 gal bleach, do I understand this correctly?