[scottz]

I exercise mine. Probably not monthly, but every couple months. Why not do it?

The Montana came with twin 30 lb tanks. I ordered two 40 lb tanks; should be here tomorrow. I measured, they will fit, but I have to move my switch over valve a little to one side. If anyone is interested, you can get two 40 lb tanks from Walmart on-line for $140, free shipping.

https://www.walmart.com/ip/2-Pack-Fl...?selected=true