Dose your pool shock correctly. Calculate amounts for liquid bleach, Cal-Hypo, and Dichlor to maintain a healthy swimming environment. Whether you are dealing with a green pool or just doing a weekly maintenance shock, our tool ensures you hit your target levels accurately.
Liquid chlorine is the cleanest option as it adds no extra minerals. Cal-Hypo is great if your calcium is low. Dichlor is convenient but adds significant amounts of stabilizer (CYA).
For mild algae, you typically need to hit 10-12 ppm. For severe black or yellow algae, you may need to reach 20-25 ppm depending on your current CYA level.
Yes, most shocks will temporarily raise your pH. It's best to re-test and balance your pH 24 hours after a heavy shock treatment.