Texas Rainwater
We all use Rainwater!
The difference between rainwater collection on your property versus buying from the city, is the city collects the water that runs across parking lots, highways, through fields with pesticides - then adding chemicals to treat the water for pathogens and hardness.
Do you care what you drink? Of course! If you collected your own personnel rainwater it would reduce your water bill drastically, and your water would have zero hardness, no calcium chloride, salts in the 30 ppm range compared to 360 ppm for city water, and 2400+ ppm in some wells. Rainwater collection has numerous important advantages and is cost effective!