Chlorine Block Prevention Method 2 - CYA Reducer
- CYA reducing chemical agents are a relatively new product that removes the need of draining and refilling your pool. A CYA reducer may be your best choice in preventing or treating chlorine lock if you live in a water-restricted area due to drought or general climate.
A CYA reducer is usually made of the chemical compound Aluminum Sulfate, which acts as a coagulating agent called a flocculant. The flocculant is essentially dirt particle flypaper; everything sticks to it until it becomes a larger mass. Eventually, that coagulated material sinks to the bottom can vacuum to waste.
For in-depth instructions on using Aluminum Sulfate, you can find them here: Lowering Your CYA Without Draining