Super Blue Crystal Clear water polish is a highly concentrated formula — one ounce clears 5000 gallons! Super Blue produces and maintains crystal clear water under all conditions without effecting pH balance or other chemicals. Super Blue Crystal Clear improves filter efficiency and is nontoxic, non-irritating and biodegradable. Super Blue Crystal Clear is the most respected and successful name in swimming pool water clarifiers. It aids in the removal of dirt, organic debris, oil, soap, color and all suspended particles that give spa water a dull or cloudy appearance. When used regularly, Super Blue Crystal Clear improves filter efficiency and reduces the organic content of pool water so that the sanitizer can be more efficient and effective.