Tip #9: Hot Water and Salt Can Thaw Drainpipes
Stir a cup of kosher salt into the hot water, then pour the concoction down the frozen drain. This slurry will act like the rock salt you put down outside to melt ice-covered sidewalks.
Hot Water
Heat half a gallon of water on the stove, but don't bring it to a boil. Slowly pour one cup down the drain, and let it set for a minute. Repeat the process until the frozen drain thaws.
In most instances, pouring hot water down the drain will unfreeze drain pipes. However, it's essential to take your time with this method to increase its effectiveness and ensure your safety. Follow these simple steps: Fill a pot with a half-gallon of water and bring it to a boil on the stove.
A frozen pipe can be thawed out using a hot water bottle, a heat gun, hair dryer or you can even use a blow torch set to low heat, providing your pipes are metal (do not use a blowtorch on plastic pipes). An outside tap cover is a great idea and can prevent pipes and taps from freezing- Outside tap cover | pr...
While a space heater, a hairdryer, or any heating mechanism can generally do the trick, if you don't have any of those things handy to help you out of your frigid fix, you can simply pour saltwater down the drain to thaw your frozen pipes.
Keep the faucet open. As you treat the frozen pipe and the frozen area begins to melt, water will begin to flow through the frozen area. Running water through the pipe will help melt ice in the pipe.
Thaw Frozen Pipes
Turn off the water immediately at the main shut off valve. Open the faucet so that water will flow through the pipe once the area is melted. This will help melt more ice. Apply heat to or around the pipe using a hair dryer.
Apply heat to the frozen area
There are several ways to do this. You can wrap the pipes in thermostatically controlled heat tape, or you can use an external heat source such as a hair dryer or space heater.
Frozen Pipes Shouldn't Be Allowed to Thaw on Their Own
The laws of physics say water always takes up more volume as it freezes. When your pipes can no longer contain the expanding ice, they will burst. This not only breaks the pipes and makes your plumbing system unusable, it may cause serious water damage as well.
If you wait for your pipes to thaw naturally, it can take hours, days, or even weeks before the temperature outside increases enough to fully unfreeze the pipes.
Stir a cup of kosher salt into hot water, then pour the concoction down the frozen drain. The concoction will act like rock salt put outside to melt ice-covered sidewalks. If your pipes have burst, turn off your water at the main shutoff valve in your house and leave your faucets turned on.
Vinegar. Pour one cup of vinegar down the pipe immediately after putting baking soda. Vinegar reacts with soda, causing it to sizzle and bubble. This solution will agitate frost build up and slowly start to clear your frozen shower drain.
Don't dump any chemical drain cleaners down either, as it likely won't make it through the frozen blockage and it will just sit in the pipe. The acid from it could start to corrode over a short time. If you want to take some boiling hot water and dump that down, it could potentially help a minor problem.
Never pour hot water on frozen plumbing or try to thaw pipes with a blowtorch. The hot water usually freezes on the outside of the pipe, and the torch can cause frozen pipes to explode if steam is produced. Also, do not strike pipes in an attempt to break up the ice, as hammer blows can cause pipes to crack.
If you have frozen pipes in your home, it can be tempting to try to heat them up as quickly as possible, but this could cause them to burst. Instead, use tools like a hairdryer, space heater, and even your home's thermostat to gradually warm the pipes.
Pipes typically burst when exposed to extremely low temperatures for an extended period of time (anywhere from 1-3 days depending on temperature). This is especially true for pipes located on exterior walls. A frozen pipe is likely to burst when any water or liquid trapped within it freezes and begins to expand.
Running water through the pipe will help melt more ice. Apply heat to the frozen section of pipe using an electric heating pad wrapped around the pipe, electric hair dryer, a portable space heater (kept away from flammable materials), or by wrapping pipes with towels soaked in hot water.
Turn on all faucets: Checking each faucet in your home will help you narrow down your search. The faucets that have little or no water pressure likely have a frozen pipe in their supply line. If every faucet is showing low water pressure, the frozen pipe may be near the water meter.
Simply pour a handful of salt down your drain pipe, quickly followed by boiling water. Alternatively, boil the water in a saucepan and stir the salt in the boiling water. Once the salt has completely dispersed, carefully pour it down the drain.
Your pipes will eventually begin to thaw on their own once the temperatures rise above freezing. As they do so, you may begin to hear your pipes making gurgling, clanging, or banging sounds as the ice begins to move. The hot water heater may do the same.