CLEAN START deep cleans your hot tub in minutes not hours. Clean Start will flush your hot tub in 30 minutes. You can drain and refill your spa the same day and not have to worry about lingering, foaming residue. Your spa is left with a fresh, clean scent. This concentrated liquid formula is specially blended to deep clean the spa pipes, jets and plumbing equipment. Clean Start removes the sludge and gunk that the others leave behind all in one small bottle. No measuring, messy creams or gels. There is nothing more POWERFUL than Clean Start by SilkBalance AND its non-corrosive and NOT harmful on your hot tub plumbing lines and parts. Our innovative proprietary formula is unmatched and all you need for a total hot tub detox that is safe to use at every drain and refill. You'll be amazed at how simple and effective Clean Start is. One bottle, 30 mins. No Fuss.No Mess.