You can test the cyanuric acid levels as often as you like. If you believe the balance of your pool is off, test the cyanuric acid levels again even if it hasn’t been a week since the last test.
Purchase test strips online or from your local pool supply store.
If you don’t want to test the water yourself, fill a container with water and take it to your local pool supply store where they can test it for you. You’ll need to gather about 2 tablespoons (30 ml).
The World Health Organization recommends that cyanuric acid levels don’t exceed 100 ppm.
For example, if you need an extra 10 ppm of cyanuric acid in your 10,000 gallon (37850 l) pool, you’ll need around 1 pound (1. 86 kg) of acid.
Remember to put on protective goggles and wear gloves when handling the cyanuric acid.
Wait until no one is using the pool before you add the cyanuric acid. You can swim after 2 to 4 hours or once the pool has run a complete filter cycle.
Stabilized chlorine is great for maintaining cyanuric acid levels in your pool because it doesn’t dramatically change the acid level. If you’re unsure if the chlorine you’re using contains Cyanuric acid check the package. If the label mentions Trichlor or Dichlor it will add Cyanuric acid to your water. Remember to check chlorine levels a few days after adding the stabilized chlorine.
