Ice above the aerator was 5" thick. Aerator was shut off 3 days ago before the last 7" snow. Ice in several other areas of the pond was a pretty uniform 11" thick.
Back on Jan 18 DO at 5ft to bottom was 2.0-2.3; water temp was 39F and 40F at bottom.
Aeration started and after 4 days DO increased to 6.3Surf, middle 4.5 and bottom 3.2-3.4 ppm. Water bottom temps 36.0-36.3F.
On Feb3 after aerating 16 days DO was 5.1 to 6.1 and water bottom temps dropped to 33.6-34.4F. Aeration was stopped since water had good DO although water temps were cold.
On Feb 11 with aerator still off DO at bottom in several areas was still good 3.6, 4.0, 4.6. Bottom temps warmed slightly to 34.4 to 35.1.
If I get time tomorrow I will time how long it takes me to spud through 11" of ice. We will see if CB1 can match my spud speed which as I recall correctly is about twice as slow as me with an hand auger.
Last edited by Bill Cody; 02/11/14 08:42 PM.
