Here in Florida SH is just around every corner. I paid $1.75 a gallon at Leslie's pool supply. Its 10%. and that is contractor discount.
A local PW supplier said he sells it at $1.10 a gallon at 14%.
I spoke to Greg at Splash and Dash and he said He gets it even better price. I need to call him back, I cant remember the place. As of yet my volume of use is still only about 50 gallons week, sometimes less or more. The snow birds are coming home within 2-4 weeks. I should be rocking by then.