Tips and Ideas
Cold Weather Protection for Control Weirs
The bitter cold temps can really do a number on outside equipment, but there's some items that plants just can't afford to lose. This was the case at Green Bay, where aeration basin influent control weirs would freeze up and refuse to control the flow. This meant a very cold repair job for the maintenance department, often at very odd times of the day.
The solution to this problem came in the form of small insulated buildings constructed over the weirs. (top photo) The construction used hand me down parts, a very inexpensive project. There's no heater inside, the wastewater flowing directly below keeps the temperature comfortable.