How To Close A Swimming Pool


Closing a swimming pool properly is an essential part of pool maintenance that should not be overlooked. By following the correct steps and procedures, you can ensure that your pool remains in good condition throughout the winter months and is ready for use again when spring arrives. In this article, we will discuss the importance of properly closing a swimming pool, the benefits of doing so correctly, and provide an overview of the steps involved in closing a swimming pool.


Before you begin closing your swimming pool, it is important to gather all necessary supplies and equipment. This will ensure that you have everything on hand to complete each step efficiently. The supplies and equipment you will need include:

  1. Pool cover: A winter pool cover is crucial for keeping debris out of your closed pool during the colder months.
  2. Winterizing chemicals: These chemicals help balance water chemistry and prevent algae growth during winter.
  3. Pool vacuum or cleaner: Cleaning equipment helps remove any remaining debris from the water before covering.
  4. Pool brush and skimmer net: These tools are used to clean the walls, floor, surface, skimmer basket before closing.
  5. Water testing kit: A kit to test pH levels alkalinity levels calcium hardness chlorine level ensuring proper chemical balance before shutting down.
    6.Pool pump & filter system : Ensure these are working correctly before proceeding with other tasks.

Cleaning The Pool Thoroughly:
1.Remove debris & leaves from water
2.Brush & vacuum walls & floor
3.Skim surface to remove floating debri
4.Clean filters-Backwash if necessary

Balancing The Water Chemistry:
Testing :
pH Levels , Alkalinity Levels , Calcium Hardness Levels , Chlorine levels ,
Adjusting :
Add Chemicals To Balance pH , Alkalinity And Calcium Hardness Add Shock To Kill Any Remaining Bacteria Or Algae . Add algaecide

Draining The Pool:
Determining The Appropriate Water Level
Lowering The Water Level

Winterizing Pool Equipment:

Cleaning and Disconnecting the Pool Pump and Filter System :
Turn off the power supply , Remove and clean pump basket & skimmer basket. Backwash filter to remove debris.

Draining And Storing Pool Equipment:
Drain pool pump,filter,heater . Remove & clean any accessories Store equipment in a dry protected area

Covering The Pool:

Installing The Pool Cover :
Ensure the cover is clean & free of debris. Secure it tightly using water bags or anchors etc.

Additional Protection Measures :

Consider installing a pool safety net or fence to prevent accidents Use a pool cover pump to remove rainwater or snow accumulation

Regular Maintenance During Winter :

Monitor the pool cover for tears/damage
Inspect the pool area for signs of damage/leaks.
Make sure that fences/safety measures are intact .

Opening The Pool In Spring :
Remove & store covered properly before storing it.
Reconnect& prime all equipment .
Test & balance water chemistry ,
Clean& prepare for use by removing debris /vacuum etc.

In conclusion, properly closing and opening your swimming pool is essential for its longevity and proper maintenance. By following these steps outlined above, you can ensure that your pool remains in good condition throughout winter months, ready to enjoy when spring arrives. Regular maintenance during winter also helps keep your swimmingpool healthy while it’s not being used . Remember maintaining yourpool will bring more joy in future summers !


Time: The duration it takes to complete the process of closing a swimming pool.

Drain plugs: Plugs used to seal off drains in the pool equipment, preventing water from escaping during winterization.

Water level: The appropriate height at which the pool water should be maintained during the closing process.

Skimmer baskets: Baskets located in skimmer units that collect debris and prevent it from entering the filtration system.

Sand filter: A type of filter commonly used in pools that utilizes sand as a medium to trap and remove impurities from the water.

Pool equipment: Various devices and components such as pumps, filters, heaters, and lights used for maintaining a swimming pool’s functionality.

Air pillow: An inflatable pillow placed under a solid or mesh cover to absorb pressure caused by freezing temperatures and prevent ice damage to the pool walls or liner.

Inground pool: A swimming pool that is installed below ground level within an excavation on your property.

Above-ground pools: Pools that are constructed above ground level using materials like metal frames or resin structures.

Pool liner: A protective layer typically made of vinyl or fiberglass that lines the inside walls and floor of a swimming pool.

Cartridge filter : A type of filter that uses replaceable cartridges with pleated fabric material to capture debris from circulating water.

Return : Openings through which filtered water is returned back into the swimming pool after passing through various filtration processes.

Return lines : Plumbing pipes responsible for carrying filtered water back into the swimming pool via return openings.

Pressure : Force exerted on objects due to liquid flow within pipes; can be monitored using pressure gauges connected to certain parts of your filtration system.

Mesh cover : A type of cover made with porous fabric designed specifically for preventing large debris from entering but allowing rainwater drainage when covering your closed swimming pool

Solid covers : Covers made out impermeable material such as PVC or vinyl designed primarily for blocking sunlight and debris from entering your swimming pool during closure.

Pool wall : The vertical structure that surrounds the perimeter of the swimming pool, providing support and containment for water.

Pool water : The water contained within a swimming pool that needs to be properly treated and balanced for cleanliness and safety.

Pool chemicals: Substances used to sanitize, balance pH levels, control algae growth, and maintain clear water in a swimming pool.

Ground pools : Pools installed at ground level without any excavation or permanent structures involved in their construction.

Pool heater: A device used to raise the temperature of pool water by utilizing different energy sources such as gas or electricity.

Pool supplies: Various equipment, tools, cleaning agents, testing kits etc., required for regular maintenance or closing procedures of a swimming pool.

Filter cleaner: A specific type of cleaning agent designed to remove debris build-up on filter elements or grids within your filtration system.

Treatment : The application of appropriate chemical products to balance pH levels, control bacteria growth and maintain clean & safe conditions in the pool throughout its closure period.

Winter cover: A cover specifically designed for winterizing purposes which provides protection against harsh weather conditions when not using the swimming p

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Mike Hunter

Mike is the owner of the local pool shop. He's been in the business for over 20 years and knows everything there is to know about pools. He's always happy to help his customers with whatever they need, whether it's advice on pool maintenance or choosing the right chemicals. He's also a bit of a pool expert, and is always happy to share his knowledge with anyone who's interested.

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