Struggling to Keep at Shock Level

[prh129]

While it is true that the sun will consume some chlorine during the day, some chlorine will also be fighting whatever you have in your pool also. By keeping the level up during the day, you will be reinforcing the troops fighting the undesireables so the battle should go faster than if you just wait until night.

Peter

[Watermom]

Until you have some cya in the pool, it is necessary to test and add bleach 2 or 3 times a day to stay at shock level. After you add cya and it dissolves, then you'll be able to go to testing and dosing only in the evenings.