Important Information for a Proper Pool Closing

Step-by-Step Pool Closing Instructions

When the weather starts to cool, it's important to know how to properly close your facility's or property's swimming pool. Properly closing a pool in the fall can save you money on costly repairs and prep work when it comes time to reopen the pool in the spring.

What You Need to Do

  • Properly Balance Pool Water to Prevent It from Becoming Corrosive or Producing Heavy Calcium Buildup
  • Balance the Pool Water Chemistry (Typically to the Following Levels)
    • pH: 7.2 – 7.6
    • Total Alkalinity: 80 – 120 Parts per Million (PPM) [80 – 120 Ml/L]
    • Calcium Hardness: 180 – 220 Parts per Million (PPM)
  • Add Winterizing Algaecide to Kill Existing Algae, Stop Algae from Blooming, and Prevent Discoloration and Foul Smells
  • Thoroughly Skim the Water to Remove Leaves, Insects, and Other Debris before Brushing and Vacuum the Pool
  • Run the Filter Continuously for 24 – 48 Hours
  • Remove Skimmer Baskets, Cleaners, Ladders, Hoses, Filters, Solar Blankets, and Other Equipment and Accessories
  • Lower the Water Level 6" (150mm) below the Skimmer Level at the Prescribed Rate of 1" (25mm) per Hour
  • Drain All Pumping, Filtering, Heating, and Sanitizing Equipment to Prevent Damage Caused by Freezing
  • Lubricate O-Rings, Valves and Plugs
  • Winterize the Plumbing by Blowing out the Lines to Protect Them against Freezing
  • Plug the Lines with Expansion Plugs
  • Cover the Pool with a Tight-Fitting Cover

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