Thawing frozen drains pipes and frozen sewer lines.
Liqui-Fire can be poured into any of the following:
The stack or stink pipe typically on a roof. NO other effort is required.
A cheater vent. Liqui-Fire can be poured directly into a cheater vent without any other effort. Simply remove the cheater vent and pour Liqui-Fire directly into the pipe. Be certain to re-install the cheater vent.
A bathroom or kitchen sink. A plunger must be used to force Liqui-Fire beyond the trap. Generally the smallest trap inside of a home is the bathroom sink and holds the least volume of liquid.
A toilet. A toilet holds a lot of water in it's built in trap. If you pour it into your toilet, then you will have to plunge vigorously to force Liqui-Fire to go beyond the trap. This is the least preferred method to get Liqui-Fire into your pipe.
On a rare occasion some people might want to pour Liqui-Fire in a standing shower or into a bathtub. It is not preferred even though it can be poured into either location.
Liability: Woodsmans International is NOT liable for any damage or stain damage that may occur be it real or assumed. If you have already used a drain cleaner then do so ONLY if you use proper safety precautions for handling acid or alkalides.
General topic: My pipes are frozen, what can I do?
Note that sewer pipes are typically empty except for the traps which hold a small amount of water to prevent sewer gases from entering the property. Please understand that should a property ever have water levels as shown in the diagram below that your toilet would prevent this from happening unless your toilet is on the second floor.