• Eric


    Not sure exactly but I think it’s most probable that most micro-organisms will die off. Certainly all chemical and biological activity is reduced in cold conditions. Excerpts from http://biosandfilter.org/biosandfilter/index.php/item/320:

    “At low temperatures, the activity of bacteria-consuming protozoa and nematodes drops sharply, and at the same time the metabolism of the intestinal bacteria themselves slows down, increasing the chance of survival of those that are carried through the bed. The factor by which the numbers of E. coli are reduced, which is normally in the range 100-1000, may fall as low as 2 at temperatures of 2°C or less, and chlorination is then essential if the quality of the delivered water is to be maintained.”

    Best probably to assume that everything will die off and re-start when temperatures increase.

  • EricReply To: How much cold will the system take.