13000 gallons in Florida during summer, I usually by 4 - 121 oz. containers of 8.25% bleach from Walmart/Target/Sam's Club (same price) every two weeks and dose my pool 32 oz. per day, so 1 container lasts about 4 days. I usually buy 2 gallons of Muriatic acid at Lowes and dose as needed, usually every week or so (8 - 12 oz.). Usually lasts a couple of months. My CYA and CH are where I want them, so I don't buy that just to "have on hand". I do have some cal-hypo, CaCl and tri-chlor left over that is stored. Unopened bleach is stored indoors, only 1 at a time is outside. In another couple months all that will be cut in half or so.