Winter Closing Planner

How the Winter Closing Planner Works

This planner gives you a reusable checklist for closing a swimming pool for cold weather. Check off each task as it is completed, add notes about plugs, antifreeze, filter pressure, cover condition, and equipment, then save the plan on your device.

The download button creates a text copy of the checklist and notes so you can keep a permanent closing record for the season.

Why Closing at the Right Time Matters

Closing too early while the water is still warm can increase algae risk under the cover. Waiting until the water is consistently cold helps reduce biological activity and gives the pool a better chance of opening clear.

Closing too late can expose plumbing and equipment to freezing conditions. The correct timing depends on the local climate, water temperature, and equipment setup.

Important Closing Steps

• Balance the water before shutting the system down.
• Clean the pool and remove organic debris.
• Clean or backwash the filter and record clean pressure.
• Blow out and plug plumbing lines correctly.
• Drain pumps, filters, heaters, and exposed equipment.
• Install and secure the winter cover.
• Check the cover and water level throughout winter.

Common Winter Closing Mistakes

• Closing while the water is still warm.
• Leaving water trapped in equipment or plumbing.
• Using automotive antifreeze instead of pool-line antifreeze.
• Forgetting drain plugs, pressure gauges, or heater components.
• Failing to record where plugs and small parts were stored.

Frequently Asked Questions

When should I close my pool?

Many pools are closed after the water is consistently below about 60°F, but freezing weather, local climate, and equipment protection must also be considered.

Do all pools need antifreeze?

No. Properly blown and sealed lines may not require it. Use only pool-safe antifreeze when the closing method or local conditions call for it.

Should the pool be shocked before closing?

Many owners raise chlorine before closing, but the exact level and timing depend on the pool chemistry, cover type, and closing products used.

How often should I check the pool during winter?

Inspect the cover, water accumulation, anchors, and equipment after storms and throughout the winter. Solid covers may require regular pumping.