With the slope of the yard, I can put more rink over the bottom part of my deck (about 2 extra feet) without much more total water...the bottom segment is the same height as the highest part of the yard.
Question: is there any reason not to do this? Will it heave strangely or behave differently from the rest of the rink?
This is Year #3, and I'm looking to make as big a slab as I can in our urban backyard...