How do I unfreeze my main sewer line?

One of the most commonly recommended fixes for a frozen sewer line is to pour very hot water (not boiling) down the drain in order to thaw the blockage.

What to do if main line is frozen?





Apply heat to the section of the pipe that is frozen.



This can be done by wrapping an electronic heating pad around the pipe, heating the area with a hair dryer or both. If you lack either of these items, using towels soaked in hot water will help as well.

Will pouring hot water down a drain unfreeze it?

In most cases, you can unfreeze a frozen drainpipe by pouring hot water down it. Fill a pot with a half-gallon of water, and heat it on the stove. When it begins to boil, carefully remove it from the stove and slowly pour it down the drain. This may be enough to thaw the ice and completely clear your drain.

How do you unfreeze an outside drain?

The best way to clear up ice in your outdoor drain is to run hot salt water or water mixed with a deicing chemical through frozen outdoor drains. If there is a lot of ice, though, you may need to use more extreme measures.

Will frozen pipes thaw on their own?

Will Pipes Thaw on Their Own? Technically yes, but the “wait-and-watch” method carries risk. As that ice begins to thaw, any water caught between the faucet and the ice will cause increased pressure within the pipe. That increase in pressure can lead to frozen pipes bursting.

Do frozen pipes always burst?





Frozen pipes do not always burst, if the expanding ice can push water out through an open faucet. However, pipes freeze quite quickly, so the time between freezing and bursting can be very short.

What can a plumber do for frozen pipes?

If the pipes have frozen and burst, a plumber can fix them. If the pipes are frozen but have not burst, a plumber can remedy them by applying a heat gun to thaw them. For an interim solution, a homeowner could use a hair dryer to start the thawing process.

How do you know if your sewer line is frozen?

Frost collecting on the exterior of the pipe is a clear sign that it’s frozen. No Water Comes Out – If you turn on your faucet and no water comes out, you may have a frozen pipe on your hands. If just a small trickle is released, pipes leading to your sewer line may be frozen or compromised.

How do you unfreeze pipes underground?

More Tips on How to Thaw Frozen Pipes Underground

  1. Turn up your thermostat. This is one of the easiest ways to thaw pipes located underground. …
  2. Use an infrared lamp. If the frozen blockage runs deeper in the pipe, turning up the temperature won’t help. …
  3. Cut out a part of the wall.



How long does it take for pipes to thaw naturally?

30-40 minutes

Fortunately, most DIY methods for unfreezing pipes gets the water flowing again in 30-40 minutes. You might be tempted to wait for the pipes to thaw out by themselves. But keep in mind: Depending on the weather, the process can take days.

How long does it take for frozen pipes to unfreeze?



30 to 45 minutes

How Long Does It Take for Pipes to Unfreeze? Space heaters, hair dryers, and heat lamps are all common household devices that can be used to thaw out pipes in 30 to 45 minutes. However, getting professional help is almost always advisable in case any pipes have burst from pressure build up.

How much does it cost to unfreeze a pipe?

Frozen pipes can lead to expensive water damage, so you want to thaw them as soon as possible. However, hiring a plumber to do this for you can cost $200 or more, so you can save a lot of money by getting it done yourself!

Can I use a heat gun to thaw pipes?

A heat gun can quickly thaw out frozen pipes so long as it’s used carefully. A heat gun is a tool that emits heat at up to 1000 degrees Fahrenheit. As you can imagine, that will melt ice very quickly. However, that type of heat will also cause a fire if it comes into contact with wood or other materials.

What melts ice in pipes?



Hair Dryer– One of the easiest ways to thaw a pipe is by using a hairdryer. Simply turn the dryer on and point the heat at the pipe, beginning with the portion closest to the faucet. As with any electrical product, take the proper precautions and avoid coming into contact with water when operating the device.

How do you unfreeze PVC pipe?

Quote from the video:
Quote from Youtube video: You want to make sure that you don't put it too close to actually melt the pipes. But you want it close enough to where all that heat is blowing directly across them.

How do you melt ice in PVC pipe?

Heat the area where the pipe is frozen.



Here are some tips:

  1. Drape a heating pad over the pipe (assuming it is dry on the outside)
  2. Use a hair dryer on the area.
  3. Place a space heater in a safe place near (but not dangerously close to) the pipe.