Crystal Blue 15 Lb. Copper Sulfate Smart Crystals 6-Acre Coverage Area Moss & Algae Killer Window Treatments solubilizes and disperses them so

solubilizes and disperses them so they can be rinsed away with water

Automatic resettable thermostat

Has a flow-control mechanism that dispenses beads from 1/8' to 3' exactly where its needed

safety pressure bypass valve with manual override

Crystal Blue 15 Lb. Copper Sulfate Smart Crystals 6-Acre Coverage Area Moss & Algae Killer Window Treatments solubilizes and disperses them soEffectively controls most types of algae. Apply by casting copper crystals over floating algae mats, dissolve in water, and spray, or place crystals in porous bag and drag behind boat. Treat a portion of the pond at a time to prevent oxygen depletion.