Free Chlorine Low Ph High. With a ph level of 6.0 your chlorine will be highly effective with 97% of your chlorine available to kill bacteria and algae. So not only is total maintenance reducing the bather load in your spa, it is also ensuring your sanitizer, particularly chlorine, is effective at keeping your spa water free of dangerous bacteria, and other pathogens.
Free chlorine low ph high. Ph down to the rescue! If the strips you are using also test free chlorine, be sure to check both free and total colors.
If the level of fc in your water is low, increase the percentage of your swcg to produce more chlorine and reduce the percentage if the fcl is high.
Chlorine killing efficacy is particularly sensitive to ph levels. Results of low ph include the swimming pool water becoming acidic. Free chlorine, 0.07, total chlorine, 0.46, ph 7.1, cyanuric acid 141, phosphates 3152 the local pool place recommended draining about two feet of water out the pool (one foot at a time, refill and recheck). If the level of fc in your water is low, increase the percentage of your swcg to produce more chlorine and reduce the percentage if the fcl is high.
