Free Chlorine Low Total Chlorine Ok. Combined chlorine is also known. If it is low, you will use a chlorinated shock.
If you find your pool’s free chlorine level becomes too low, you can use calcium hypochlorite to uplift the level. Free chlorine can interact with chemicals, bacteria, algae, and many other particles present in pool water. Combined chlorine is the chlorine that’s bonded or attached to the stuff it worked on.
When you add the free chlorine, it oxidizes the contaminants like nitrogen and ammonia.
0.1 mg/l (0.0 to 3.5 mg/l range); If it is low, you will use a chlorinated shock. So according to the poolmath calculator i put in about 81oz of 10% liquid chlorine which was a little more than half the gallon. Your free chlorine level should ideally be 3 parts per million.
