Free Chlorine Vs Total Chlorine Hot Tub. Routine water care is key to avoiding hot tub water problems. It means that the chlorine in your tub is “locked” and when that happens it does not sanitize efficiently.
Chloramines, also known as combined chlorine, are the result of too little free available chlorine in your water. February 07, 2008, 05:35:51 pm ». When the chloramine level is higher than the… read more
Combined chlorine = total chlorine.
Another way to figure the combined chlorine level is to subtract the total chlorine level from free chlorine level, provided the total chlorine is higher than the free chlorine. On the other hand, granule chlorine has. A sign that you need to shock your hot tub is when the total chlorine is higher than the free chlorine. This is the value you actually test for.
