I need to take some steps in finding out the cost of growing my plants. I currently use water from my home and the entire bill is paid out of our home account. I need to find a way to keep track of how much water is coming out of the two faucets that I use for growing my plants-one coming out of my grow room and the other outside. Is there a device you can attach to a waterhose/spicot that will measure this?

I appreciate your suggestions.