Winterising Your Swimming Pool
Taking the time to properly winterise your swimming pool is likely to make it easier to open when the warm weather returns. Despite common belief, winterisation is mainly to protect the installation from frost damage although it also aims at preventing green water.
Read the easy steps you can do to ensure your pool equipment is protected to the maximum and your pool water stays in reasonable condition, making it easier to open next spring.
Some of the things that you need to do prior to winterising your pool are;
- In areas where the water is soft ensure your calcium hardness level is to a minimum of 200ppm
- Check the pH level and ensure the level is 7.6-7.8, slightly higher than normal. (Our pH Minus or pH Plus is ideal for this).
- Remove solar cover, clean and store away.
Winterising your pool procedure:
- The pool must be thoroughly vacuumed, cleaned and all leaves removed.
- Lower the water level to around 150mm (6”) below skimmer and close the valve for the skimmer(s) on the plant filter and circulate through the main drain.
- Shock treat the pool keeping the circulation system on, to increase the chlorine level to 5-10mg/l. (Our Granular Shock is perfect for this at a dose rate of 700gm for 45,450 litres).
- Add your winter algaecide at the recommended dose rate around the pool edge and circulate (Our Algaecide can be used at a dose rate of 1 litre per 20,000 litres pool capacity).
- After an hour of circulation, backwash filter thoroughly and turn off.
- Remove skimmer basket, weir and store.
- Remove plug at bottom of filter tank to drain filter.
- Remove drain plug, lid and basket from pump and store away for the duration of the winter. If possible, remove pump and store inside for winter.
- Disconnect the heater and remove drain plug if fitted.
- If the filter is position below water level, insert winterising plugs in all circulating fittings and open all gate valves to drain the system.
- Drain automatic chlorinator if fitted, remove chlorine and flush out.
- You can place some empty plastic containers (use small stones in the bottom to partially submerge them) and place couple in the pool and in skimmer. To relieve pressure off the pool sides when and if ice forms.
- Fit winter cover.
- You may need to top up algaecide, if it has been diluted due to excess rain.
- Start checking chlorine levels in the pool when air temperature rises above 7oc in early spring.
If you have any queries about how to close your pool correctly or would benefit from some assistance, then HTP Hot Tubs and Pools will happily service your pool. Or visit our online shop to view the products and chemicals you’ll need to keep your pool in the best condition over the winter period.
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