If the sewer pipes are frozen, you can use the sun to dry them. If the pipes are outside, you can wait for the pipes to thaw naturally; if the sewer pipes are frozen, you can use hot water to melt them. Note that the hot water cannot be boiled water to avoid pipe rupture; coarse salt industrial salt can be used for the freezing of the sewer pipe. After the coarse salt or industrial salt is melted in the hot water, it can be poured into the pipe; if the sewer pipe is frozen, a hair dryer can be used. The walls are heated with hot air.
