Check the listing for details. Sirona Spa Care Spa Up 2 lbs.. Condition: New. Listed at 16.99 USD. Sirona Spa Care Spa Up is a reliable pH balancer designed for spas, gradually increasing the pH level while safeguarding against equipment corrosion and scale buildup. Compatible with various sanitizers, it ensures a safe and consistent pH balance for your spa.Product Features:Spa Up is compatible with all sanitizers and ensures your spa water stays safe and healthyGranular formula of our spa alkalinity increaser increases pH and total alkalinity levels, so your sanitizer stays effectiveEffectively balances spa water to minimize the risk of equipment corrosionOur spa alkalinity increaser keeps your spa water above 7.2 to prevent corrosion from occurringMaintains sanitizer effectiveness for clean spa water and whole-self wellnessDosage:If the pH level is between 6.8-7.2, add 1 ounce (2 tablespoon) per every 500 gallons of spa water. If the pH level is under 6.8, add 2 ounces (4 tablespoon) per every 500 gallons of spa water.