Protect your swimming pool in the cold weather this winter !
In order to protect your outdoor swimming pool and equipment from the effects of the unpredictable British climate it is important that your pool is correctly shut down for the winter
There are two methods that can be used to winterise your pool
Method 1 – Lowering the pool water level
- Clean the pool ensuring that the pool floor is clear of leaves and debris and the water is clear.
- Ensure that the pH is between 7.2 and 7.6 and that the chlorine level is at least 8 ppm - this can be achieved by the addition of non stabilised chlorine granules or liquid chlorine
- Add a winter algicide such as Clear N Clean and leave pump on for 3 hours to ensure even circulation of the chemicals in the pool water
- Lower the pool water level about 2” below the skimmer mouths
- Drain and then disconnect the pump from the filtration pipe work and remove the pump lid
- Drain the filter and pool heater – this will prevent any damage to the pool plant due to the pool water freezing in the pipework and equipment
Fit a winter debris cover which is held under tension by spring tensioners fitted in the pool surround and will allow rainwater through but keeps leaves and other unwanted debris out of the pool
Method 2 – Using a froststat
- Winterise pool as described in 1 above, but if an accurate frost stat is connected to the pool pump then the pool water level be left at the normal level ,as the frost stat will be activated when the air l temperature drops below 4 degrees C.
- This method of winterisation ensures that the movement of water by the pool circulating pump will prevent the pipework and plant from freezing in the cooler months, without the need for lowering the pool water and enables the pool owner to control the pool water level using the pool pump.
- This method of winterisation has to be used when an automatic pool cover is fitted in order to prevent damage to the cover by dropping the pool water level
Ensure that your swimming pool and associated equipment is covered by your household
insurance policy!

