Pond Boss Forums AERATION Should I aerate? When To Quit?

Joe - Some in my area start aeration as soon as ice is off and water is 39F. This early aeration does not appear to cause problems in their ponds. Although Mother Nature will relatively well-mix most ponds until the surface temps get into the 50F+ range. The warmer the water gets above 40F the more wind action it takes to mix surface water to the bottom.

Your byPass valve (pressure relief valve) seems to be set to blow off (release) at 8psi. This assumes your air guage is accurate. If you are able to push air at a true 25 ft deep then the psi at the pump is 12psi. Air pressure at pump will reflet the head pressure of your deepest diffuser. If your pressure guage is liquid filled (glycerin) then there is supposed to be a small air space at the top of the guage. There often is a small rubber plug at the top of liquid guages to allow one to equalize the air pressure between the internal guage air space and the atmospheric air pressure. Some guages have a rubber plug at the top that you can stick needle into to allow the pressure equalization.