What brand and percentage are you guys most commonly using? I hate to start a thread that is so popular but all the searches brought up some pretty old threads. I have a couple of pool stores close by also if they offer some good liquid chlorine. I also have a Sams Club but I don't know if I should buy a ton ahead of time. But, with a CYA of 90, hee hee...I currently have 3 191 oz jugs of Great Value brand. I like that it fits in the pool math calculator, but if there is a better deal, I'm definitely game.