Men should pee sitting down. Now before you call me a strident feminist, let me say that I'm backed up on this one by male colleagues and the reasons aren't what you think. I'm not arguing for toilet equality here. I'm talking about urine-separating toilets, which are much easier to use for men and women when sitting down. The bowl of these toilets takes urine in the front, feces in the back. It's hard enough to aim for the whole bowl (or so the evidence of many bathroom floors tells me), much less the front part of the bowl. One guy put a pee can in the corner, but that seems inefficient: pee in the can, then pour it down the toilet. Why not just pee in the toilet? Why should you care? Because urine contains up to 90% of the nitrogen and 50% of the phosphorous in domestic wastewater. Those chemicals make for great fertilizer — stuff we have to use a lot of energy to produce artificially. In healthy populations, urine is sterile, and removing it from feces makes composting the solids easier and more effective. Two models of these toilets are available in the U.S., both from Ecovita. But before you rush out to buy one and change your life, remember that composting solids and using urine to irrigate your tomatoes isn't legal in most places. You might be able to get special dispensation from the building code folks, but like most things involving wastewater treatment alternatives, it won't be easy. Watch for the coming article in the September issue of EBN. Update - the article is online (members only, though). Urine Separation: The Next Wave of Ecological Wastewater Treatment
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posted by acksolarsolutions
You simplified PV to much. Inverters and panels can stop working so there is maintenance. Also you lose a lot of those electrons moving though...
posted by buildingshelter
Does anyone have experience with the Matrix by NTI?