The following foods: Milk, butter, margarine, real cheese, plain yogurt, most ice cream without gluten-containing add-ins. Vegetable oils, including canola. Plain fruits, vegetables (fresh, frozen and canned), meat, seafood, potatoes, eggs, nuts, nut butters, beans and legumes.
Alkalinity Balance, pH up, pH down, Calcium Balance, Water Stabilizer, and clarifier are all swim-safe chemicals. Wait about 20 minutes, and you are free to swim. We suggest adding algaecide, Super Erace, and shock at night, after everyone is out of the pool. It is safe to swim again the next day.
Even if you take great care maintaining the proper chlorine levels in your pool, there are still other times when you may want to shock your pool anyway to be sure the water remains clear and safe for swimming. 1  Some of the most common times are: 2  After heavy pool use. 3  After a heavy rain or windstorm. 4  After a water change.