Get your pool or spa back to comfortable, swim-ready water in minutes.
Jack’s Magic After Shock is specially formulated to neutralize excess chlorine and eliminate strong chemical odors after shocking, so you can enjoy clear, balanced water without the wait.
After shocking your pool or spa, chlorine levels can spike—causing harsh odors, skin irritation, and downtime. This formula works immediately to bring levels back under control so you can safely get back in the water sooner.
Add the recommended amount directly to your pool or spa after shocking when chlorine levels are high. Circulate water for best results.