Carbon filter water drain removes unpleasant smells, is smaller and lighter than bio-filters and remains effective in periods of drought and frost

摘要

A water drain (12) rests above a shaft which emits unpleasant smells. Water falls through a grid (1, 2) to a collector housing (3) and is released through the basket (8) holding a charge of carbon grains (10). Filtered water is released through a pipe (6) to the drain shaft.