How do you stop water from freezing in the tanks in colder temperatures?

United Site Services has experimented with several different ecologically friendly anti-freeze options to keep the water from freezing in the tanks during the winter months in northern locations. The anti-freeze is mixed in with the deodorizing water in the tank, and works to keep the water fluid and unfrozen during the colder temperatures of the year. All products used are compatible with our waste water facilities.