Are you planning to close your pool for winter? Then it is of the utmost importance to have a careful plan to protect it during the cold season. By following a detailed checklist, you can ensure that the pool makes it through the cold months without damage and is ready for a smooth opening in the spring. Every step, from thorough cleaning and water balancing to draining pipes and installing a protective winter cover, plays a crucial role in avoiding problems such as frost damage, algae growth, and unnecessary repairs. Follow our checklist for a simple, effective, and safe winter closure of your pool!
Checklist:
1. Pool cleaning
A clean pool significantly reduces the risk of algae growth and protects surfaces and filters from damage when reopening.
- Remove leaves, branches, and other debris from poolen.
- Brush the walls and floor thoroughly to remove algae and deposits.
- Vacuum the bottom thoroughly for a completely clean pool before winter.
2. Balance the water chemistry
Proper water chemistry is fundamental to protecting pool surfaces from corrosion and limescale deposits, which can occur with unbalanced pH, alkalinity, or calcium hardness levels. This significantly extends the lifespan of both the pool's surfaces and technical equipment.
- Check and adjust the pH levels to between 7.2 and 7.6.
- Adjust the alkalinity to between 80–120 ppm.
- Check the calcium hardness and adjust to 200–400 ppm.
- Add the necessary chemicals to achieve the correct balance and protect the pool surfaces.
3. Shock treatment and algaecide
- Add chlorine or another shock treatment to effectively eliminate bacteria.
- Let the pump circulate the chemicals for a few hours for optimal effect.
- Add algaecide to prevent algae growth during the winter.
4. Lower the water level
Lowering the water level below the skimmer significantly reduces the risk of the water freezing and expanding in the pipes, which could otherwise lead to costly cracks and damage to poolens structure.
- Lower the water level to 10–15 cm below the skimmer or corresponding water inlet.
- Make sure the water level is not so low that it negatively affects the pool structure.
5. Drain pipes and equipment
- Turn off and completely drain the filter, pumps, and heaters.
- Use a compressor or air blower to effectively blow out all remaining water from pipes and hoses.
- Leave the valves open to prevent any remaining water from collecting and freezing.
6. Protect fragile components
- Cover the pump, filter, and any heater with protective covers if they are not moved indoors.
- Remove and store loose components, such as filter inserts, in a dry, frost-free place to extend their lifespan.
7. Install winter plugs
- Insert winter plugs into the skimmers, return pipes, and other openings to prevent water from entering and freezing, which protects the pool's infrastructure.
8. Protect the pool with a pool cover
- Place a pool cover over the pool and make sure it is taut and securely fastened to provide maximum protection.
- Use a cover with safety features if possible, for added security.
- Make sure the cover is free of debris that could damage it or weigh it down. A clean cover makes spring pool cleaning significantly easier.
9. Prepare the pool area
- Put away pool furniture and all equipment around the pool to protect them from winter weather and extend their lifespan.
- Remove ladders and any loose items around the pool edge to prevent damage and accidents.
10. Winter maintenance for the pool
- Check the pool cover regularly, especially after heavy snowfall or storms, to ensure that it still provides optimal protection.
- Clear snow and debris from the cover to avoid it being weighed down and at risk of damage.
- Inspect the cover's straps and fasteners to ensure that it is properly secured and protects the pool effectively.
Different Pool Types Require Different Preparations
The pool's material and construction affect how you should prepare it for winter:
- In-ground concrete pools: These are often robust, but require the correct water level and any cracks to be repaired before winter to prevent more serious damage.
- Fibreglass pools: These pools are particularly sensitive to changes in ground moisture and freezing point. It is therefore of the utmost importance to keep the water level at the correct height to avoid structural damage.
- Above-groundpools: These pools often require draining most of the water to reduce the load on the structure when snow accumulates, which helps prevent damage.
Winterize pool
Following a detailed checklist for winterizing the pool is essential to protect your investment and avoid costly repairs. By carefully cleaning the pool, balancing the water chemistry, lowering the water level, and draining pipes and equipment, you minimise the risk of frost damage, algae growth, and corrosion. Winter plugs and a proper cover protect poolen from debris, snow, and ice that could damage the structure or clog the system. Taking proper care of the pool before winter makes spring opening significantly smoother and keeps the pool components in good condition for longer.
