Spa And Swimming Pool Chemicals Everything you need for getting your hot tubs, spas and swimming pool up and running The Blue Sparkle Spa Chemicals is the utmost chemical solution for inflatable hot tub and swimming pool care. These are designed especially for Mspa hot tubs but can be used for any swimming pool and all home spas. ISO9001 certified. Everything you need for ensuring your water is safe and comfortable. Easy to use with clear instructions provided on bottles. Large bottles for long lasting use. Makes water clean and hygienic.