Booster(100 Lb) Stabilizer-100% (Cyanuric Acid) Foreign

Stabilizer is called Booster or Cyanuric Acid.   It slows down the reaction time that it takes the sun to turn your clorine back to salt.   You should keep your CYA level between 50 to 80 in any type of pool except Indoor pools which do not have Sun to destroy the chlorine.

• Reduces Chlorine loss from sunlight
• This is not a US product.  It is made in China
• Use 1.0 lbs per 10,000 gallons to raise your CYA 10 PPM
• Product may be Hasa or another brand.