Designed for drains that tend to dry out due to lack of use, EverPrime eliminates sewer odors, minimizes plumbing and maintenance calls, and keeps pests away. Product is totally biodegradable with freeze point of -20°, making it suited for winterizing traps. Used in floor and shower drains, sinks, and unused water fountains, EverPrime is suited for schools, restaurants, factories, stadiums, empty/vacant buildings, and marine applications.