How to Close a Swimming Pool for Winter

Below are the basic steps you need to follow to winterize or close down your swimming pool. The process is very straightforward and shouldn’t require any specialist knowledge.

Winterize Your Swimming Pool

Winterize Your Swimming Pool

image by mknobil

1. Firstly ensure the chemical balance of your pool is correct. The two main things to worry about and adjust if required are the chlorine levels and the pH.

2. Ensure your pool is thoroughly cleaned. Take your time to clean it thouroughly brushing down the bottom and walls prior to vacuuming to ensure any algae build up is removed from the water. Complete the clean by backwashing the filter and cleaning all of the filter cages.
3. Add some winterizing chemicals to the pool. I like to use ‘Winterclear’, adding 1 litre of chemical for every 7,500 litres of pool water. After adding run the pump for 48 hours to fully circulate the chemicals.

4. Drain some water out of the pool so that the level drops 10cm below the bottom of the skimmer opening. The water level will naturally rise (via rainfall) over the winter.

5. Drain the skimmer pipe. To prevent any issues with ice add a sealed plastic bottle (with a few stones in it) into the skimmer.

6. Remove the summer cover and install the winter cover.

That’s it, your pool should now be ready to hibernate over the winter and should be in the best possible condition for when it is time to open your swimming pool in the Spring.

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