What are winter plugs, and why do I need them?
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Winter plugs (also called winterizing drain plugs, expansion plugs, or freeze plugs) are devices used to seal off various pool plumbing openings (skimmers, return jets, main drains, cleaner lines) during the off-season to prevent water from freezing in the lines and causing damage to your pipes and fittings. By plugging the lines and draining water, you reduce the risk of ice expansion damaging the plumbing and pool equipment.
When should I install winter plugs?
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You should install winter plugs when your pool is being closed for the winter, and after you’ve removed or blown out water from the lines. The general guideline is when the water regularly drops to 60-65°F, or when the nights begin to risk freezing.
How do I choose the right size winter plug?
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Measure or identify the pipe/fitting that you’re plugging. Check the product specifications for compatible diameters and ensure the plug fits snugly and seals properly.
Can I reuse winter plugs year after year?
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In most cases, you can reuse winter plugs, provided they are still intact (with no cracks and the rubber not deteriorated), and can still seal effectively. It’s good practice to inspect them each season for wear and tear or any other damage, and replace as needed.
What should I do with my plugs in the spring?
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When you reopen your pool in the spring, remove the winter plugs and any other isolation devices that were installed during the winter. Inspect them for any damage and make a note of any items that may need replacing before storing them in a dry, cool location..