I knew it. They blocked her access to the sewer system:
http://news.yahoo.com/blogs/oddnews...ighting-to-live-‘off-the-grid’-234050584.html
Whenever I've had city water, I was told that the bulk of the fees was for the sewerage, not the water supply. That's why many people will install a second meter for their sprinkler systems, because watering the lawn doesn't use the sewer and the bill is lower.
I know she wants to live off the grid and use collected water. But.... Since the water company determines your sewer usage by the amount of water coming into your house through the meter, couldn't she connect to the city's municipal water, NOT use it, still flush with the collected water and get to use the sewer for free or nearly free?