How to Mix Algaecide & Chlorine

Chlorine shock and algaecide are added to the pool to clear up algae in the pool, which turns the water green. When applying the algaecide and shock to the pool, you do it separately and not together. Chemicals added to pool water are never broadcast together, but hours apart from each other. The timing when adding chlorine shock to the pool is important so you don't cause a chemical reaction that could seriously injure someone.

Things You'll Need

• 5-gallon bucket
• Chlorine shock (calcium hypochlorite)
• Algaecide

Instructions

1. Fill a 5-gallon bucket with warm water. Turn on the pump so it will filter continuously while you are clearing up algae in a pool.

2. Use 1 lb. of calcium hypochlorite per every 10,000 gallons of water in the pool. Dissolve the calcium hypochlorite in the 5-gallon bucket of water.

3. Add chlorine shock to the pool at dusk. Adding shock at night gives it time to circulate through the pool and not start dissipating under the heat of the hot sun. Walk around the pool broadcasting the shock chlorine in the water.

4. Add the recommended amount of algaecide to the pool water 12 hours after you have added the shock chlorine. Algaecide is added in the morning hours and not at night. Algaecide products vary and each one has different amounts to use for the pool size.

References

• Pool Manual: Shock
• N.C. Division of Environmental Health: Water Chemistry for Swimming Pools