At what temp will pool pump freeze?

Author: Darrell Luettgen DDS  |  Last update: Thursday, May 26, 2022

If you have an above ground pool with the pool filter system and plumbing above ground (like nearly all above ground pools), pipes and pumps can freeze up in less than an hour of minus 32 degrees. The same is true for inground pool equipment that is not running when temperatures are below freezing.

Will running my pool pump keep it from freezing?

Helpful tips to keep your pool and its equipment safe during freezing temperatures. Run your pool pump continuously when temperatures are near or below freezing. You don't need to run your heater, moving water likely will not freeze.

Does freezing damage pool pump?


If you do not keep up with these maintenance items, then the flow of water through your pool equipment will be greatly diminished. In a freeze situation, this can lead to freeze damage on your equipment.

How do you unfreeze a pool pump motor?

Bring the pump housing into an area where the temperature is above freezing. Eventually, the ice in the pump melts and the pump can be flushed, winterized and reconnected back into the filtration lines of the pool.

What temperature should you run your pool pump?

Even if you have your pool covered, some debris may still get in it during the winter. For this reason, you should consider running your pump on occasion whenever the outdoor temperature is between 35 and 65 degrees. Around four to six hours should be sufficient to remove debris and help promote good circulation.

What to do with your pool when its Freezing Outside

What temperature does ice form?

Water, like all types of matter, freezes at a specific temperature. The freezing point for water is 0 degrees Celsius (32 degrees Fahrenheit). When the temperature of water falls to 0 degrees Celsius and below, it begins to change to ice.

Does water freeze at 32 degrees Celsius?

Water can be frozen at 32 degrees Fahrenheit, 0 degrees Celsius, and 273.15 Kelvin.

What temp does water instantly freeze?

The smaller streaks are from condensate coming off falling water droplets — not water that has frozen midair. The air is not quite cold enough to freeze water immediately, which happens at about minus-42 degrees, Terry said.

How long does it take to freeze water at 32 degrees?

You might not even be able to freeze it at 32 degrees, but most likely it will be solid after around 10 hours for water equivalent to a normal bottle.

Can water be colder than 32 degrees without freezing?

We've all been taught that water freezes at 32 degrees Fahrenheit, 0 degrees Celsius, 273.15 Kelvin. That's not always the case, though. Scientists have found liquid water as cold as -40 degrees F in clouds and even cooled water down to -42 degrees F in the lab.

Why does water freeze at 32 degrees?

Freezing happens when the molecules of a liquid get so cold that they slow down enough to hook onto each other, forming a solid crystal. For pure water, this happens at 32 degrees Fahrenheit, and unlike most other solids, ice expands and is actually less dense than water. That is why ice cubes float!

Does water always freeze at 0 degrees Celsius?

“Contrary to popular perception, pure liquid water does not usually freeze at its melting point, 0°C, and can instead supercool to temperatures as low as -38°C.

Is 34 degrees freezing?

So, there is nothing magical about frost forming. 32 degrees is still the freezing mark.

What happens if my pool freezes?

Mild climate pools often freeze across the surface overnight. However, if the ice sheet becomes thicker than ¼” to ½”, it will put pressure on your pool tile and skimmers as the ice expands. Most pool tile is frost-free, but you should keep the water under the perimeter pool tile band to be safe.

How does pool freeze protection work?

Freeze Protection Units allow pool and spa owners to set a desired temperature where their pump and heater will automatically turn on. Once the climate drops to the specified temperature, the Freeze Protection Unit kicks in. It turns on your pump and heater to keep the water moving, which prevents freeze expansion.

How do I keep my pool filter from freezing?

Run Filter Pump

An effective way to keep a pool's pipes from freezing or cracking in the cold is to run the filter pump 24 hours a day or set your pump to turn on automatically when temperature reaches a temperature. It will keep the pools water circulating. Doing this maintains a constant water temperature.

Can water get colder than 32 degrees?

And water freezes at 32 degrees Fahrenheit. But it can actually get colder than that, all the way toward what we call absolute zero. This value is equivalent to about -459 degrees Fahrenheit. This is when the water molecules are basically not moving.

Will water freeze at 33 degrees?

Water will not freeze with the temperature air at or above 33 degrees, regardless of how far the wind chill is below freezing. Wind chill has no effect on inanimate objects, and they cannot be cooled below the ambient air temperature.

Is 32 degrees above freezing?

Frost, ice formed when water vapor on a surface surface is at or below 32°F (0°C) Meanwhile the surrounding air temperature could be above 32 degrees. Our temperature readings are usually measured from five to ten feet above the ground since this is the level we live in.

Is freezing 32 degrees?

While the rule of thumb is that water freezes at 32 degrees Fahrenheit (0 degrees Celsius), water can actually stay liquid over a range of chilly temperatures under certain conditions.

Will ice melt 33 degrees?

The map above shows the position of 33 degrees at various times overnight. I picked 33 degrees because that usually starts decent melting. The 33 degree line will gradually move north overnight. Anywhere south of the 33 degree line should be in the mid 30s at coldest, and should have quick melting of ice.

What is the coldest water can be before it freezes?

Chemists have discovered just how cold water can get before it must freeze. How low can you go? For water, the answer is -55 degrees Fahrenheit (-48 degrees C; 225 Kelvin). University of Utah researchers found that is the lowest temperature liquid water can reach before it becomes ice.

What is the coldest water can get without freezing?

The Birth of Ice

The computers helped Molinero and Moore determine how cold water can get before it reaches its theoretical maximum crystallization rate and must freeze. The answer: minus 48 C (minus 55 F).

Can water be below zero and not freeze?

As a result, you can cool very pure water well below zero degrees Celsius without it freezing. Water in this condition is called "supercooled". At standard pressure, pure water can be supercooled to as low as about -40 degrees Celsius. Supercooled water is kept from freezing only by the lack of nucleation centers.

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