Advantis Technologies – Spa Calcium Hardness Increaser

HELPS PREVENT CORROSION OF YOUR SPAS PLUMBING AND HEATER! – Low calcium levels can cause staining on your spas surface as well as corrosion in spa lines and equipment. – When the calcium level of your spa water drops below 200 ppm, just add Calcium Increaser. – Dosage: 1oz. per 500 gallons. – Available in a 2lb. container – Be sure to look for matching cake and party supplies (sold separately).