Quick update...wife, kids, life, and the tank are all well. I have lots of openings to fill in the tank but haven't had a chance to fill them yet. Life goes too fast! The slow economy has not impacted my office too bad. In fact, I've been on a head-down trudge working some long hours the past few weeks. My only respite has been spending time on RC.
I just did the math on my switch to DIY 2 part + Lime...
I picked up 24 lbs of baking soda for $12 (Costco), 27 lbs of driveway Heat for $18 (Home Depot), and 10 lbs of Mrs Wages pickling lime for $30. It appears that this will get me through the next 12 months. I've calc'd my usage as shown at the bottom of this post. These numbers are still a little rough but are close enough for horse shoes. I think I'm going to make my $50 / year target. I definitely wouldn't have made it if I weren't buying in bulk.
* 14 lbs / year Driveway Heat
* 20 lbs / year baking soda
* 9 lbs / year lime