Check the listing for details. SpaPure Alkalinity Increaser - 1 lb (2 Pack). Condition: New. Listed at 24.99 USD. Pools - Spas - Stoves - Fireplaces SpaPure Alkalinity Increaser - 1 lb - Part #CS002693-CS20B6 - 2 Pack Purpose: The SpaPure Alkalinity Increaser is the smart formula to combat low levels of alkalinity, which if left untreated can cause corrosion damage, weaken your sanitizers ability to keep your spa clean, and cause skin and eye irritation When alkalinity is balanced correctly, the water will be less likely to cause damage from corrosion or scale Increasing total alkalinity levels stabilizes pH and acts as a water buffer or pH buffer to prevent pH bounce Keep your spa in balance with SpaPure Alkalinity Increaser! Directions: Turn on circulation system Add 1/2 and ounce (1 tablespoon) for every 200 gallons of water to increase total alkalinity 10 ppm Broadcast product to the surface of the water Spa may be used 15 minutes after application Wait one hour and retest for total alkalinity Ingredients: Sodium Hydrogen Carbonate: 100% General Policies Keep your home running smoothly with Clearview, the Clear Choice for your pool, spa and hearth needs! If you have any questions, please contact us before buying. We pride ourselves on offering exceptional customer service and helping to provide you with the complete information you need to make an informed purchase. Shipping and Billing: We only accept payment from and ship to confirmed PayPal addresses All packages are shipped within one day of ordering Returns: Returns are not accepted on opened or used products and are subject to 10% restocking fee If a package arrives damaged or defective, please report it to use immediately so we can promptly take care of the situation Questions: If you have any questions, please contact us. We will always take the time to answer your questions. We have over 25 years in the industry, so don’t hesitate to ask! We’ve probably heard it before! Business Hours: Weekdays 9 - 5 | Saturday 9 - 4 | Eastern Time Disclaimer: I will follow all applicable federal and state laws and regulations regarding the sale of the pesticideI won’t accept bids from, sell to, or ship to states in which the pesticide is not registered as a general-use product