It was -7 outside and drilling stainless in those temps is rather distracting, I managed to cut myself a few times on various things without even realizing.
Biggest frak up, almost, was the positioning of the sight glass. Only by absolute fluke does the polycarbonate tube not interfere with the handle on the drain valve. Fully closed, the valve lever just touches the tube...
|Sight glass fitted, ready to wrap the tank up in some insulation.|
|Oops, a bit close for comfort. Luckily the valve still closes fully.|