Yestoday, our design team met the local metal fabricator Tim Allen in Kelowna and discussed a few minor things about the metal structure.
After that we looked at the site preparation and came up with a 3S solution: the Smartest, the Simplest, and the Smallest greenhouse design with a 10×10 footing plus underground pool built with gravels and a pond liner.
Have not seen anything like this in my past dealing with solar thermal and geo thermal.
This simple digging, placing pond liner underneath, followed by back filling with gravels is so smart, so simple, and so bloody easy.
Thank Richard Nelson for this genius idea!