How to Close Your Above Ground Pool at the End of the Season

Closing an above ground pool at seasons end should be a fast and worry-free process - learn how.

How to Close Your Above Ground Pool at the End of the Season

Closing an above ground pool at season’s end should be an easy and worry-free process. Our pool specialists at The Pool Factory™ have put together the following tutorial to ensure proper pre-maintenance and closing of your investment at the end of the season.

For instructions on closing your Saltwater Pool, please follow this step-by-step guide - How To Close Your Saltwater Swimming Pool At The End Of The Season

For instructions on closing your Pool with the Frog Pool Tender System, please follow this step-by-step guide - How To Close Your Pool - Frog Pool Tender Water Care System

Recommended Pool Closing Supplies

Winterizing Closing Kit for Chlorinated, Pool Frog or Saltwater Pools up to 25,000 Gallons

Winterizing Chemical Kit

wide-mouth-winter-plate-650x650-small-dm.webp__PID:df8c64db-c7ee-4521-8c99-133ddffcee10

Skimmer Winterizing Plate

Threaded Winterizing Plug for Standard Return

Threaded Winterizing Plug for Standard Return

Air Pillow

Air Pillow
(Ice Compensator)

Winter Pool Cover

Winter Cover

Pool Filter Cover

Filter System Winter Cover

aquapro-cover-pump-apc4000a-650x650-small-dm_1125x1125.webp__PID:a99ebeca-f58f-45e8-a264-d5764498fe2c

Cover Pump

Winter Cover Pumps are strongly recommended to keep excess water from building up on your cover. Excess water on your cover means excess stress and a torn cover or damaged pool.

Steps to Close your Swimming Pool

Step 1

Gather Supplies - Before you start, make sure you have all necessary supplies on hand:

For a Complete Pool Closing Package that includes all 5 of these accessories click here - Pool Closing Packages

Step 2

Clean the pool:

  • Brush and Vacuum: Thoroughly brush the walls and floor of the pool to remove any dirt, algae, or debris. Vacuum the pool to ensure it's clean.
  • Remove Debris: Skim the surface to remove leaves, bugs, and other floating debris.

Step 3

Balance the Water Chemistry:

  • Test the Water: Use a pool water testing kit to check the chemical levels (pH, alkalinity, and chlorine). Test Kits can be found here → Test Kits
  • Adjust pH and Alkalinity: Ensure the pH is between 7.4 and 7.6, and the total alkalinity is between 80 and 120 ppm. Adjust if necessary. pH and Alkalinity balancers can be found here → Pool Chemicals

Step 4

Add Winterizing Chemical Kit and clean your filter system:

  • Add Dry Granular Winterizer, follow directions for use and precautionary statements on label.
  • Add Sequestering Compound, follow directions for use and precautionary statements on label.
  • Add Winter Oxy Plus, follow directions for use and precautionary statements on container.
  • You will wait approximately 1 hour between adding each chemical. Once you add the last chemical, you should run your filter system for another 3-4 hours to circulate the treated water before moving on to the next step.
  • Clean the Filter System: Backwash the filter (Sand filter or D.E. filter) or clean the cartridge (Cartridge filter).

Winterizing Closing Kit for Chlorinated, Pool Frog or Saltwater Pools up to 25,000 Gallons

winterizing chemical kit

Winterizing Closing Kit for Chlorinated, Pool Frog or Saltwater Pools up to 25,000 Gallons

Step 5

Close off thru-wall skimmer and return fitting:

  • Install Skimmer Winterizing Plate.
  • Install Threaded Winterizing Plug for Standard Return.
  • Installation Videos can be found below for these winterizing accessories.

Step 6

Clean and Store Equipment:

  • Remove any debris from the skimmer and pump baskets.
  • Disconnect the filter system and remove all of the drain plugs in the filter tank and pump. This will allow the filter system to completely drain out any water and dry before storing indoors over the winter time. You also have the option to use a Filter System Winter Cover to protect the filter system from the fall and winter elements if left outside.
  • Take out all pool accessories like ladders, lights, and solar covers. Clean them thoroughly and store them in a dry place.

Step 7

Install the Air Pillow:

  • Inflate the Air Pillow: Inflate the air pillow to about 60-70% of its capacity. The air pillow helps to absorb ice expansion and protect the pool walls.
  • Place the Air Pillow: Place the air pillow in the center of the pool and secure it with ropes or tethers.

Step 8

Cover the Pool:

  • Install the Winter Pool Cover: Spread the pool cover over the pool, making sure it covers the entire pool and air pillow. Drape the winter cover over the air pillow so it lays on the surface of the water all around the pillow.
  • Secure the Cover: Use the cable and winch to secure the cover tightly around the pool. Ensure there are no gaps or loose areas where debris can enter.
  • Add 1-2 inches of water on the cover to prevent wind damage.
winter-cover-air-pillow-correct.png__PID:ba9512db-1840-4bb5-9d1a-857a3cda71f5
winter-cover-air-pillow-correct.png__PID:ba9512db-1840-4bb5-9d1a-857a3cda71f5

Tips for a Successful Pool Closing

  • Perform regular checks: Throughout the winter, periodically check the pool cover and remove any debris or water that accumulates on top.
  • Avoid heavy weight on the cover: Ensure the cover is not weighed down by heavy snow or ice, as this can damage the cover and pool.
  • Winter Cover Pumps are strongly recommended to keep excess water from building up on your cover. Excess water on your cover means excess stress and a torn cover or damaged pool.

By following these steps, you can help ensure your above ground pool remains in good condition throughout the off-season and is ready for use when the warm weather returns.

Related Articles:

Skimmer Winterizing Plate Instructions

Skimmer Winterizing Plate Instructions

The following is step-by-step installation instructions for installing your skimmer winterizing plate on your pool.

View Article
featured-benefits-of-pool-cover-pump.webp__PID:169169eb-ca62-42a0-af0f-0bb4cb0f7387

Benefits of Winter Cover Pumps For Pool Closing

Learn the many benefits of a winter cover pump and how it will help protect your above ground pool during the harsh winter season.

View Article

Additional Tips

Blow out excess water in the pool heater using an air compressor or shop vac and plug inlet and outlet lines of heater.

As water, ice and snow build up on your winter pool cover during the winter, always drain the cover when possible using a winter cover pump.

Too much water on the winter pool cover can destroy your pool if not drained off. The weight of the water pulls the cover into the pool. The cable, which holds the cover in place, will then pull the top ledges, the skimmer and the return up. This will damage the above ground pool beyond repair. Your pool warranty does not cover winter damage.

Excess water on the cover can also tear your liner. The weight of the water will cause more movement in the ice below, which can rip your liner. Never attempt to break ice on your pool winter cover or in your above ground pool. This will tear your liner. Wait for the ice on your cover to melt and then pump it off. Ice below the cover should be left alone. Let it melt on its own. Never let anyone step on the ice, cover or on the pool. This will damage your pool.

AquaPro Filter System Winter Cover

The AquaPro Filter System Cover is designed to protect your above ground filtration system from debris, acid rain, and block UV light. Quick and easy fit with elastic bottom and (4) Velcro side seams. The AquaPro Above Ground Pool Filtration Equipment Cover protects and extends the life of your filtration system.

Shop Products
AquaPro Filter System Winter Cover

AquaPro Automatic Pool Cover Pump 3,000 GPH w/Leaf Protector

The AquaPro Cover Pump is the finest pool cover pump ever designed. Features a powerful 110 volt 3000 GPH automatic submersible pump with a specifically designed strainer base. Learn more...

AquaPro Automatic Pool Cover Pump 3,000 GPH W/Leaf Protector

Alternative Pool Closing Tutorials

How To Close Your Pool with the Pool Frog System

How To Close Your Pool with the Pool Frog System

Closing a pool with the Pool Frog System at seasons end should be a fast and worry-free process - learn how.

View Article
Closing a Saltwater Swimming Pool at Seasons End

How To Close Your Saltwater Pool at the End of the Season

Closing a saltwater swimming pool at seasons end should be a fast and worry-free process - learn how.

View Article