Pool Chlorine Ph Level

As the chlorine level is being continuously replenished by the addition of sodium hypochlorite the ph level remains a consistent elevated high contingent upon the continued dosing.

Pool chlorine ph level. Unbalanced ph kills chlorine s power. The optimum ph for pool water is 7 4 since this is the same as the ph in human eyes and mucous membranes. A ph of 7 4 also gives good chlorine disinfection. The easiest way to check your ph and chlorine levels is with test strips.

The association of pool and spa professionals recommends free chlorine levels for both swimming pools and hot tubs be kept between 2 0 and 4 0 ppm. With a ph level of 6 0 your chlorine will be highly effective with 97 of your chlorine available to kill bacteria and algae. When your free chlorine levels get too low we recommend using calcium hypochlorite to raise them back up. In this scenario you can add all the chlorine you want and your ph levels will render it useless.

Whether it s low or high unbalanced ph is the super villain of your pool s germ fighting hero. Ph higher than 7. If your ph falls below 7 2ppm you should add ph increaser which will correct acidic water conditions slow the dissipation of pool chlorine and prevent etching of plaster pool walls. In addition it is more difficult to keep chlorine in the pool because while more effective as a sanitizer at the low ph chlorine is also much less stable resulting in the consumption of larger quantities of chlorine than would be used at normal ph levels.

However at 6 0 your pool water would be extremely acidic and unsafe to swim in. The center for disease control has found the answer to be a ph of 7 45 and free chlorine of 3 0 ppm. If your pool s ph level goes above 7 6ppm reduce it with ph reducer which will help the other pool chemicals work more effectively. On the flip side if you ph is at 8 5 only 9 of your chlorine will be available to kill bacteria and algae.

However the center for disease control recommends free chlorine stay above 1 ppm in pools and 3 ppm in hot tubs. Maintaining the ph higher than 7 8 will increase the tendency to form scale or cloudy water. If the ph level is too high even having the right level of chlorine won t be enough to make sure the water is safe to swim in. A cyclical process where the hcl formed at best can merely keep up like lucille ball at the conveyor belt.