Check the listing for details. Sirona Spa Care Phosphate Remover Plus - 1 pt.. Condition: New. Listed at 27.99 USD. Sirona Spa Care Phosphate Remover +Sirona Spa Care Phosphate Remover + is a concentrated liquid designed for weekly use, effectively eliminating phosphates from spa water. This multifunctional product clarifies water and prevents waterline buildup, offering a comprehensive solution.Product Features:Phosphate Remover+ is compatible with all sanitizers3-in-1 concentrated formula removes phosphates, clarifies spa water and prevents waterline buildup for clean, relaxing resultsSirona Specialties maintain restorative spa water and transform every spa into a soothing sanctuaryDirections:Shake well before using. With the circulation system running, add 1 teaspoon of Sirona Spa Care Phosphate Remover + into the skimmer weekly for up to 500 gallons of spa water. Continue to pump at least 12 hours after applying the product.