How To Raise Low Free Chlorine In Pool. Dose your pool with cyanuric acid (uv blockout/stabiliser). The free chlorine level of pool water should be 10 times the combined chlorine level.
It is much better to have too much free chlorine than not enough free chlorine. This is especially important if the cyanuric acid concentration in the water is low. Increase free chlorine in a pool by adding 1 pound of chlorine or bromine for every 20,000 gallons of water.
However, the accuracy test strips provide should be sufficient for total alkalinity tests.
How to lower pool chlorine. Click for pools over 20k gallons. If you have a salt water pool, you can take several steps to lower your free chlorine levels. You will need to purchase the appropriate amount of chlorine or bromine for the size of the pool.
