do it yourself!

I've just found instructions for a do-it-yourself solar hot water heater. It sounds like something that could be right up my alley. I've been looking for a way to wash the dogs outside without making poor Kuma shiver to death (whether its irrational Kuma-fear or a reaction to near-freezing well water, I'm not sure). The best part? The instructions say it'll cost $5. Thats WAY cheaper than paying a plumber to put a hot water spigot on the outside of my house, which may or may not be "legal".