Performed the sack ice test today. 20# cubed sack ice lasted a little over 2 hours. A lot of the loose ice melted while cooling down the 2 gallons of water in the cooler. The water is needed for the circulation pumps.

Faults found that have to be addressed:

1. PWM wide open only produces 11.48 volts when battery is 12.35. Can't make it to maximum air flow volume without bypassing PWM circuit. I can't reach "rabbit" speed.

2. two radiators restrict too much air flow the way they are arranged at present. I have the motor sucking and blowing air. Looks like the bilge blower was designed to suck air. Will rearrange radiators locations and see what happens at a later date.

3. The DAP flex latex caulk eroded in the cold water. It is supposed to be waterproof. The caulk was set firm when I started. Nasty mess. Will contact DAP.

4. Styrofoam is cheap and so is my time.