Check the listing for details. Poolife Alkalinity Plus (10 lb Bag) 2 Pack. Condition: New. Listed at 39.98 USD. Poolife Alkalinity Plus (10 lb Bag) 2 PackPart #62129 Poolife Alkalinity Plus raises the total alkalinity of your swimming pool water Total Alkalinity should be maintained between 80-120 ppm.Incorrect alkalinity can cause ph to fluctuate.Dosage1.5 lb per 10,000 gallons to raise total alkalinity 10 ppm.DirectionsUse a reliable test kit to measure the total alkalinity concentration of your pool water.If the alkalinity is below 80 ppm, add this product. Disperse in the deep end of the swimming pool.Add 1.5 lb per 10,000 gallons to raise alkalinity 10 ppm.IngredientsSodium Bicarbonate: 100% An RMA/RGA is required to return any item Buyer pays all return shipping If you have any questions, please contact Clearview Fireplace and Patio We would be happy to help