Jack?s Magic Stain Solution #2 Copper and Scale Stuff (5 lbs)

Jacks JMCOPPER5 Stain Solution 2 Treatment Can Last 48 Hours To 5 Days Depending On The Stain Level. The Chemical Will Cause A Combined Chlorine Reading For 30 Days. Be Sure To Test Both Free And Total Chlorine To Avoid Over-Chlorinating. Verify Treatment With Jack's Magic Stain Id Kit. Circulate The Pool Water Continuously. Bypass Your Pool's Heater When Using This Product. Avoid Using Shock In Your Pool For Two Weeks Following Treatment.