septic vent filters “freeze up” in extreme cold?
Vent pipes can occasionally clog up with frost if it is cold enough for long periods of time. This is called “hoarfrost”. All Wolverine ® filters (except inline models) are designed with cross through ventilation to wick away the moisture that naturally occurs at a vent to help reduce the possibility of freezing in freezing temperatures. If you are in an area of extended below freezing temperatures you may want to consider choosing our Inline Wolverine ®. This style filter is mounted in the attic, away from the elements, and comes with an insulated blanket for added protection. NOTE: The Inline Wolverine requires removal of a section of vent pipe. For this reason we recommend that it be installed by a professional plumber.