Are you supposed to drip faucets during freeze?

Author: Dr. Mark Tromp  |  Last update: Wednesday, May 27, 2026

When the weather is very cold outside, let the cold water drip from the faucet served by exposed pipes. Running water through the pipe - even at a trickle - helps prevent pipes from freezing.

Should I leave my faucet dripping when it's freezing?

Yes, You Should Drip Your Faucet in Cold Weather. Running water through the pipe--even at a trickle--helps prevent pipes from freezing.'' And while that may cause concern for those of you who like to keep your water bills low each month, letting your faucet drip may save you a bigger bill for repairing your pipes.

How much to drip faucets during freeze?

Set faucets to a small, steady drip rather than a stream to conserve water while preventing freezing. Drip the faucet farthest from your home's main water valve. “You don't have to drip them all—one or two is fine,” Sperlich told USA TODAY.

Should you drain your pipes during a freeze?

Ideally, to protect from freeze damage, the water supply should be shut off and the pipes should be purged (drained) of water. If purging is not possible, at the very least, faucets should be left open. This will allow the water to expand as it freezes so it will be less likely to burst the pipes or damage faucets.

Does it really matter if your faucet drips?

Wasting Water and Higher Bills: A leaky faucet is wasting more water than you may realize. According to the EPA, one drip every second wastes approximately 3,000 gallons of water per year, or as much as taking 180 showers. This “minor” leak is bad for the ecosystem and raises your monthly water bill.

Which faucet should you keep dripping to prevent freezing pipes?

Is it better to cover outside faucets or let them drip?

If you live in a climate with freezing temperatures, you'll want to cover your outdoor faucets in the winter rather than dripping them. Even with a vigorous drip, frigid temperatures can travel through your faucet and freeze the connecting pipes. Before using a cover, you'll need to properly winterize your faucet.

Can a dripping faucet increase water bill?

Studies have shown that a leaking faucet can increase your water bill by over 10% each month. This increase can be quite substantial, especially when you take into account the rising cost of water. Imagine the cumulative effect over several months or even a year.

What not to do when pipes freeze?

Do NOT Use These Methods To Thaw Frozen Pipes
  1. Blowtorch.
  2. Gas heater.
  3. Kerosene heater.
  4. Propane heater.
  5. Other open flame appliances.
  6. Any device near insulation.
  7. Electric device with extension cord.
  8. Electric heater, blow dryer, or other device near water.

At what temperature should I drain my pipes?

After the temperature drops below about 40 degrees F in your house, it is time to prepare for the coming freeze and winterize your house. This involves draining the water pipes, as best you can, and protecting sinks, traps and toilets from freeze damage.

Is it better to shut off water during freeze?

DURING freezing weather:

If you plan to be away from home for several days, shutting off the water can reduce the chances of broken pipes. Set your home heat to at least 55 degrees. Shut off water to the house and open all faucets to drain pipes; flush the toilet once to drain the tank, but not the bowl.

How many faucets should you let drip?

The truth is, you only need to allow one of your faucets to drip. This faucet should be the farthest away from the area where water enters your home through the pipes.

How warm should you keep your house to prevent pipes from freezing?

Here's a list of ways to prevent freezing pipes in your home: Keep the thermostat at a minimum of 68 degrees Fahrenheit. Make sure pipes are properly insulated.

How to tell if pipes are frozen?

A foul smell from the drain or faucet is a less-obvious warning sign. Odors are unable to filter out of the frozen pipe and instead are forced back into the home's faucet. No water or a slow trickle when a faucet is used. Whistling and banging coming from pipes, or strange bubbling sounds when you flush a toilet.

Should you leave outdoor faucets open during winter?

Should I leave outdoor faucets open during winter? Leaving outdoor faucets open during the winter can work if the only other options is risking freezing pipes. Generally, it's better to use a faucet cover to insulate the faucet than to leave the water dripping.

How long does it take pipes to freeze at 28 degrees?

When temperatures drop below 20 degrees, it usually takes six hours for insulated pipes to freeze, while temperatures between 20 and 32 degrees are likely to freeze pipes after about 12 hours. Knowing how long a freeze can take to set in can help you keep your pipes from freezing.

Can pipes freeze in one night?

Yes, pipes can freeze overnight if temperatures plummet drastically. Uninsulated pipes in unheated areas like attics or exterior walls are most vulnerable.

At what temperature do you need to drip faucets?

So, exactly how cold does it need to be before you do this? Southern Living says professionals list the threshold temperature for pipes to freeze at 20 degrees Fahrenheit, meaning this or anything below can create a potential for water to turn to ice in your pipes.

How do you prepare your house for an extreme cold?

Caulk and weather-strip doors and windows. Insulate walls and attic. Install storm or thermal-pane windows or cover windows with plastic from the inside. Repair roof leaks and cut away tree branches that could fall on your home or other structure during a storm.

Can pipes freeze but not bust?

Not all frozen pipes burst. However, thawing the ice can increase the risk, as it usually worsens the problem since it raises the pressure further.

How to properly drip faucets?

You need just a trickle of water to drip so that water is moving through the pipes consistently. How long do I run the water? Let the faucet drip until temperatures are consistently above freezing to be on the safe side.

Which pipes are most likely to freeze?

Pipes that freeze most frequently are: Pipes that are exposed to severe cold, like outdoor hose bibs, swimming pool supply lines, and water sprinkler lines.

Is it okay to leave a dripping tap?

It's not a good idea to leave a dripping tap. Watersafe estimate that a dripping tap could waste up to 5,500 litres of water over the course of a year!

Does flushing the toilet raise your water bill?

A single flush costs just a fraction of a cent, so unless you're someone that makes a habit out of flushing the toilet on repeat, then there won't be much of an impact on your water bill. However, if there's an ongoing leak then you'll want to get it fixed right away, as you could end up footing an expensive bill!

Is it expensive to leave a faucet dripping?

The average leaky faucet produces around ten drips every minute, wasting around one gallon of water per day. It costs you about a dollar per month. But more significant leaks, like faucets that leak 120 drops per minute, waste more than 11 gallons per day and cost you $6 every month.

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