1 tbsp. per 100 gallons increases calcium hardness ~25 ppm
Available Size: 12 oz
This website, swimnpools.com, is setup for local customers of Swim-N-Pools Billiards & Spas. If you are outside of the Chesterfield and Greater Richmond, VA area and/or not able to do a curbside pickup at our Chester, VA location, please visit our sister site, yourpoolstore.com, which ships nationally.