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Winterise your Hot Tub

If you’re a hot tub owner, some of you may find using your spa during the winter months is a luxurious experience.
However, if your hot tub will lie dormant during the winter months, we can show you how to winterise your hot tub in advance. By following these steps and tips, you can protect your spa during the long, cold winter to ensure it remains in excellent working condition.

Winterise your hot tub


If you’re planning on spending most of the winter at home, it’s best to keep your hot tub constantly running and filled with hot water that you test and treat according to your usual schedule, even if you don’t expect to use it frequently.

Winterise your hot tub


Winterising your hot tub is not a task that should be left until the last moment, so plan ahead and get an early start.
Before you drain your hot tub, you’ll need to assemble some equipment:
• A wet/dry vacuum cleaner will help suck as much water as possible out of your tub, your jets, and your pipes.
• A garden hose will facilitate draining from your hot tub’s drainage plug.
• Absorbent towels to sop up any lingering water from the bottom of your spa.
• Propylene Glycol antifreeze to keep your spa’s pipes from freezing. For safety, never use an antifreeze containing Ethylene Glycol—the kind you use in your car—in your hot tub. It’s toxic.
• A long funnel for pouring the antifreeze into narrow openings.


• Turn off the power to your hot tub
• Drain your hot tub
• When most of the water has drained, use your wet/dry vacuum to suck up any water remaining at the bottom of your spa.
• Remove the filter cartridges, clean them, and store them in a warm space. If your hot tub’s control panel comes with a wireless remote, store that indoors as well.
• Even after draining, several gallons of water may still remain hidden in your hot tub. Get rid of as much of it as possible by using the wet-dry vacuum to either suck or blow any remaining water out of the jets, the filter standpipe, and any other feature or opening in your hot tub where water may hide.


After you’ve removed as much water as you can from your spa, continue the winterisation process by following these steps:
• Screw the drainage cap back into place.
• Using a clean, absorbent towel, wipe any remaining moisture from your hot tub shell.
• Use a funnel to pour a small amount of propylene glycol antifreeze into your jets, your filter standpipes, and any other opening through which water may enter or leave your spa.
• Replace your hot tub cover and securely strap it into place.
HotSpring South West & Wales will be able to arrange for a qualified hot tub professional to visit your home and winterize your hot tub. Please call our service department to arrange.