【How-to】How to add cyanuric acid to pool

You should use about 4 lbs of CYA per 10,000 gallons of water for every 30 ppm it needs to be raised. Some product instructions vary, though, so be sure to read the label for proper dosage. Most of the time, you will need to add CYA at the beginning of swim season and won’t have to mess with it much after that.