Prevent buildup in spa plumbing that could restrict water flow, damage spa equipment and cause spa water maintenance problems. Often, if a spa or jetted tub has problems, the cause is a buildup of organics, oils, dirt and minerals inside the spa plumbing. Jet Clean is a revolutionary low foaming formula that quickly clears the inside of spa plumbing. Use each time a spa or hot tub is drained and refilled to keep jets performing like new. Compatible with all spas, hot tubs and jetted tubs.