Pool MarvelThe All Natural Pool Marvel formula has been carefully developed to work in conjunction with all other pool chemical systems to enhance their performance and reduce overall maintenance in a swimming pool environment.
Helps to improve water clarity and quality
Enhances chemical treatments
Reduces scum lines, chlorine odors and irritated eyes
Helps to maintain pH and alkalinity levels/ Improves filtration
Just one capful (100 ml or 3.3 ounces) treats up to 75,000 L (20,000 gallons) of pool water per week. For more details please use this link - pool marvel