How to Protect Your Pool from Freezing Temperatures

When water freezes, it expands. That simple fact can lead to expensive pool damage if the water inside your pipes, pump, or skimmer freezes and cracks the equipment. Even your pool surface and tiles can suffer.

Damage from freezing temps can include:

• Cracked pool pipes and fittings

• Busted pumps, filters, or heaters

• Broken skimmers or valves

• Loose or popped pool tiles

Taking preventive steps can help you avoid major repairs once spring arrives.

When to Start Preparing for Freezing Weather

Start your freeze protection plan before the first hard freeze hits. Monitor local forecasts in late fall and early winter. As soon as temperatures start dropping below 32°F at night, it is time to act.

Some areas only need short-term freeze protection. Others, especially in northern climates, need full pool winterization. Know your climate and respond accordingly.

Steps to Protect Your Pool from Freezing Temperatures

Keep the Pump Running During a Freeze

If freezing temperatures are expected, run your pool pump 24 hours a day. Moving water is much less likely to freeze. Make sure your timer is off and set to manual until the freeze passes.

Insulate Above-Ground Plumbing and Equipment

Wrap any exposed pipes, valves, and equipment with foam insulation sleeves or towels secured with duct tape. You can also use pool equipment covers for added protection.

Lower the Water Level Slightly

If you're not fully winterizing, lower the pool water just below the skimmer to prevent damage. Do not drain the pool entirely.

Remove and Store Pool Accessories

Take out ladders, cleaners, floats, and toys. Store them in a dry place. These items can get brittle and crack in freezing conditions.

Use a Pool Cover

A solid winter cover or safety cover keeps debris out and helps maintain a more stable water temperature. It also protects the pool surface.

What If the Power Goes Out During a Freeze?

Power outages during a freeze are serious. Without the pump, your water can freeze fast. Here are quick tips if that happens:

• Open all valves and drain plugs on pumps, filters, and heaters to allow water to escape.

• Remove drain plugs from equipment and tilt to drain any trapped water.

• Do not attempt to run the equipment dry when power returns. Refill and prime first.

Should You Fully Winterize the Pool?

If you live in a region with sustained freezing temps, full winterization is the safest option. This includes:

• Draining water from all plumbing and equipment

• Blowing out lines with an air compressor

• Adding antifreeze to pipes

• Plugging all returns and skimmers

• Covering the pool securely

Hire a pool professional if you are unsure how to do this. Improper winterization can be more costly than hiring help.

Pool Freeze Protection Tips for Southern States

Even in warmer states, freak cold snaps can happen. If your area is not used to freezing, follow these tips:

• Install a freeze protection sensor that automatically turns on the pump

• Wrap equipment and piping with heat tape

• Keep a backup generator or portable heater in case of a power loss

Many southern pool owners do not winterize, so being ready when the cold hits is important.

After the Freeze: What to Check

Once temperatures rise again, inspect all your equipment and plumbing for signs of damage:

• Look for cracks in pipes, valves, or filters

• Check pump motor performance

• Rebalance your water chemistry

• Remove and clean your pool cover

Address any issues early before they get worse.

Stay Ahead of the Cold

Protecting your pool from freezing is all about timing and preparation. Know your climate, act fast when temperatures dip, and do not underestimate the power of a winter storm.

It is much easier to prevent freeze damage than to fix it. A little effort now can save you from major headaches and repair bills in the spring.