How do you kill a bunch of mollusks that are rapidly reproducing and threatening water intake pipes?
Copper ions. These elemental properties apparently prevent zebra mussels from reproducing and from attaching themselves to water intake pipes and other water filtering systems.
The city explains it like this: “This simple process is comprised of two copper plates with an electrical charge which releases copper ions into the water. The level of copper is enough to inhibit eating, breeding and settling of zebra mussels.”