Maybe, but the quality of the chemicals you put in your pool may be the difference between a yucky green, algae infested pool and one that looks like crystal clear drinking water. I’ve preached this in the store for nearly twenty years. All chemicals are not created equal! Seldom do box stores or groceries have the same chlorine strength as what we have. If chlorine tablets they sell are 10% less but you need to use 50% more, is it a value or a disaster waiting to happen? And if their algaecide comes in a gallon jug…just move over to the detergent aisle and pick up some liquid dish soap. It’s just about the same chemical composition and the foam in the pool will remove any doubt.
Sorry, but when I start carrying steaks, burgers, lumber, or bathroom faucets, I’ll agree that it’s okay to get chemicals at a lumber yard or supermarket. –Max