With so many people calling me with questions regarding frozen water lines, I thought it could be helpful to share some info.
If you have a water line freeze and bust you may have to shut off the water to prevent further damage.
Any water left n the lines could be susceptible to freezing. When water freezes it expands. When a water line freezes solid that is full of water, it will rupture. It is best to get as much water out of the lines as possible.
If you have an air compressor and the ability to connect fittings that allow you to connect your air hose to a spigot, such as a laundry connection or garden hose spigot, you can blow nearly all the water out of your lines.
I would suspect that the best way to do this, is to shut off the water. Drain the water heater. Then, open the fixture at the highest point in the house, and the lowest point in the house to siphon the water out as best as possible. Allow that water to drain out of the first faucet. Close it and move on to the next.
Most likely, you'd start with bathroom showers, then sinks, then tubs, then flush toilets, on the highest level, then move down a level until you have completed this for all fixtures.
Then open up every single fixture in the house, and leave open. If you have nontoxic antifreeze (RV antifreeze) you can pour that into all your p-traps. Every single drain sshoul have a p-trap. So you pour enough down every drain to fill the trap, which means every sink, every tub drain, , washer drain, floor drain, etc. You wwoul also need to pour into the toilet, too.
Also, do not forget to open every outside spigot. However, they may be frozen, and you may be unable to open them if you have failed to prevent them from freezing. If this is the case, you cah take a heat gun or hair dryer and try to thaw them so you can open them up.
If you have anything has gotten wet, you want to do what you can to get it dried up, as quickly as possible. Employ the use of fans, dehumidifiers, and heat to dry out everything as quickly as possible.
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