Buick_guy said:
Thats weird, cause if they catch you opening your mouth in the rain, then they could get you for stealing water.
That sounds like a BS law!
BS or not, its the law in Colorado:
Excerpt from:
http://www.denverwater.org/drought/FAQ_WestWaterLaws.html
Q. Why can't Denver Water customers reuse their own gray water for outdoor use?
A. Colorado water law allows each customer just one use of the water before it goes down the drain, through a wastewater treatment plant and back into the river for others to use. By law, Denver Water customers are not permitted to take their bath or laundry water (commonly referred to as grey water) and dump it on their outdoor plants or garden. After this water is used once by Denver Water customers, it must return to the South Platte River where it will be used seven or eight more times before it gets to the state line (Nebraska). State water laws are enforced by the State Engineer's office.
However, Denver Water customers are encouraged to catch unused clear water in a bucket or other container as it comes out of the tap and then use this water once; to mop floors, refresh pet water or water plants. For example, try catching water that comes out before the shower water warms up and then use this water to flush toilets or rinse the shower.
Q. Why doesn't Denver Water have rebates for rain barrels so we could catch our rain and put it on our plants?
A. Colorado Water Law requires that precipitation fall to the ground, run off and into the river of the watershed where it fell. Because rights to water are legally allocated in this state, an individual may not capture and use water to which he/she does not have a right. We must remember also that rain barrels don't help much in a drought because a drought by its very nature supplies little in the way of snow or rain. The reuse of household water (gray water) is regulated by the Colorado State Board of Health Guidelines On Individual Sewage Disposal Systems. Local health agencies are responsible for implementation and enforcement of the Guidelines.