How Do You Use Copper Sulfate in Drains?

Pour copper sulfate crystals of medium size into the commode or toilet stool in small amounts, about 1/2 cup at a time, followed by successive flushing of water until the crystals are carried outside the dwelling into the sewer line.

Can you pour copper sulfate solution down the drain?

You Should Never:

Pour copper sulfate down a drain, either indoors or outdoors. Doing so can cause severe damage to aquatic life.

Will copper sulfate damage my pipes?

Considerations. Copper sulfate damages metals such as iron, brass and chrome, so keep copper sulfate away from those metals. In addition, never use copper sulfate more than twice a year. The more you use the crystals, the more likely damage will occur to the pipes.