Is solar water distillation not economically viable for a whole home water supply? Some friends live outside the city limits and don't get city water. They have a well, but it produces smelly, sulfur (?) water that isn't potable (or at least that isn't desirable). I figured solar distillation would be the way to go, but most stills I've found only produce 3 liters a day. Is there anything that can do 400+ gallons a day that the average US home uses? [more inside]
Recently, when I turn on my shower in the morning, the water runs clear for a few minutes, then a spurt of black inky water comes out for anywhere from two to 10 seconds, then it starts running clear again. I haven't noticed this with any of my other faucets/water sources. What might be causing that black water (I assume something's collecting in the pipes somewhere) and is it something I should be worried about? As a side note, my hard, hard water does seem to eat through my plumbing like it was made of spun sugar.