![Insulating Septic and Dosing Tanks to Avoid Freezing During Winter](https://cole-onsiteinstaller.imgix.net/https%3A%2F%2Fwww.onsiteinstaller.com%2Fuploads%2Fimages%2Fsheet-insulation.jpg?crop=focalpoint&fit=crop&fp-x=0.51&fp-y=0.675&h=620&ixlib=php-1.1.0&q=75&w=1024&s=2d22a3decc59c0b0d76c2dc049e6f33a)
Insulation board can be placed along the side and on top of the tank prior to backfilling. When selecting a board, keep in the mind the higher the R-value, the better the thermal performance of the insulation.
In cold climates, insulating a septic tank may be necessary to maintain the internal tank temperatures necessary for active digestion and even to prevent freezing of the liquid. As the temperature drops in the tank, the natural bacterial activity drops as well and becomes dormant...