Spa System Flush effortlessly super-cleans hidden pipes, jets, pumps, hoses of hot tubs & jetted whirlpool baths. Loosens and removes oily residue, heater scale, black flakes, and grime like nothing else. The volume of filth flushed (even from well-maintained spas) will astonish you.

• Flushes plumbing - improves jet action
• Dissolves oily buildup, scale, inanimate scum
• 16 oz. Enough for 2 spa or 8 jetted bathtub cleanings

Product notes: When time to change spa water, remove filter, add 8 oz. Run jets for a few minutes, or circulate overnight if convenient. Drain and refill with fresh water. Use 2 oz. for whirlpool baths.