Ha HA . Spaced out! I love it. I actually did laugh out loud when I read that. Reminds me of that one Afroman song. " I was gonna go to school, but then I got high" My major is actually Kinesiology but it entails quite a bit of anatomy. and btw, college is a joke anyways. I was the same as you in high school. I had the most amount of absences allowable in each class before they kick you out. I had Saturday detention every sat of my senior year for some reason. I dont even know how the hell I got sat detention the first sat of the school year!!!

The original question: I have no experience based answer but I'll take a swing at it. I'm gonna guess it has something to do with Calcium? since hard water is determined by the amount of Ca+, I'm gonna say excess Ca+? OR I dont know what soil run-off should be but is 5 too low?