Calcium Hardness Increaser - 50 Lb. Bag filter-width_12 1/2 inches and even algae

and even algae

This is a Pentair 59001500 Tie Rod for FNS Plus 36 Square Foot D

This is a PVC Coupling with slip fitting connections that measure 5 Inch

and is designed to warn patrons that children under 18 years of age must be supervised and adults should not swim alone

Sodium dichlor kills algae and purifies pool water

Calcium Hardness Increaser - 50 Lb. Bag filter-width_12 1/2 inches and even algaeThis is a 50 pound bag of calcium hardness increaser which will raise the total the calcium hardness in your swimming pool water. This calcium chloride product is in granular form. For most pools, calcium hardness levels should be maintained between 200 and 400 ppm. Active Ingredient of the Harness Increaser: 100% Calcium Chloride. Directions for Adding Harness Increaser to Your Swimming Pool: If calcium levels are low, add this product directly to