Yeah, we just did a seminar on SODIS last month for the locals. I, too, had never heard of that before we did our training earlier this year. Strange. As for insulation, Ryan sent me a few tubes of caulk. Huhuhuhuhu. We'll see how that goes. Thing is, they don't HAVE insulation here. It doesn't exist. And every time I try to explain the concept to them, they look confused and say, "ok. Whatever, white guy." And it's not like I can just stack haybales around my house, either: a) they don't have those either, and b) they have LOTS of exotic vermin here that would be pretty happy with that sort of thing. Thus, we persevere as-is.