How do you clean rusty slimy pool water?

To clean rusty, slimy pool water, start by testing the water's chemical balance and adjusting pH and alkalinity levels as needed. Use a pool shock treatment to eliminate algae and bacteria, followed by adding a rust remover or metal sequestrant to address the rust. Finally, run the pool filter continuously until the water clears, and vacuum any settled debris from the bottom. Regular maintenance and proper chemical balance will help prevent future issues.