I've been doing some research on backyard ice rinks. My son plays house league hockey and LOVES the sport. I skate too, and have a big enough yard to do it, so I'm gonna give it a go this winter. From my reading, I've decided to make one myself instead of the kits available because I've read some aren't as easy as they make them sound. I'm starting this year with a 28' wide x 40' long and see how it goes. So, anybody else here do this before? Tips? Suggestions?