Yea a buck a gal is high, and ther sg is low........The lfs here makes and sells 1.023 and 1.025 and also 1.021..........Its easy to keep it if you keep a power head running in it or if kept in a closed container with an air stone, and store it in a cool dark place it will last a long time.......Just make sure prior to usiing it after its stored for any time to scrape any salt creep back into the water and allow it to dissolve well and make sure to check sg and adjust as your going to loose some water to evaporation during storage, so have some RODI on hand. My lfs just went up to 75 cents a gal on his water, it was 60 cents a gal up till about 3 weeks ago......