Have you ever wondered if chemicals are the same for pools and hot tubs? If you have both a pool and a hot tub, you may have been tempted to buy one set of chemicals for both to save time and money. We must caution you, though, that doing so is detrimental to your pool, your hot tub, and you. What starts as a well-intentioned attempt to simplify your routine or to save costs, quickly turns into a problem you don’t want to deal with. Some people with both a pool and a hot tub, view them as being very similar. If you think about it though, there are reasons you have one of each. You probably enjoy your pool for certain activities and your hot tub for others. Why is that? The reason is that they are quite different and, as such, have varying chemical requirements. Without a lot of pool and hot tub chemical knowledge, it’s easy to assume that the ingredient labels on pool and spa chemicals prove that they are basically the same. Here’s why that is not the case.