When should I close my pool for winter?

Once water temperature drops below 12 C and stays there. In most UK postcodes this falls between mid October and early November.

Is propylene glycol antifreeze safe for pool pipes?

Yes. ClearPool propylene glycol is a non-toxic antifreeze formulated for potable-water pipework and pool plant.

Should I drain the pool fully for winter?

No. A full drain risks the structure floating in wet ground. Lower water below the skimmer line and dose winteriser instead.

Do I need to test water through winter?

Once a month under the cover, sampling from the deep end. Re-shock and re-balance if free chlorine drops below 1 ppm.

Pool Winterising Chemicals

Winter close down protects every component of your pool while it sits idle. ClearPool winterising chemistry combines a long-dwell algaecide and stabiliser package with a non-toxic glycol antifreeze for pipework.