Capacity Requirement
The City of Tucson rebate program requires that your system be designed to capture at least one inch of rain that falls on the roof area you are collecting from. Use this simple calculation to determine the minimum capacity of your system to get the best rebate rate of $1/gallon.
Roof Area x 0.621 = System Capacity Required to Collect 1" of Rain From the Specified Roof Area
Multiple cisterns can be linked together to achieve the desired capacity. Cisterns can also be paired with retention basins to achieve the desired system capacity.
Most Commonly Used Cisterns
This is not an exhaustive list of the all the cisterns we have access to, just the most common sizes that work in urban yards.
Tucson Water Rebates
The City of Tucson encourages households to harvest water by offering rebates to do so. Two of the residential rebates that Tucson Water offers are for rainwater and greywater harvesting. Residential Tucson Water customers can receive up to $1900 to help install rainwater harvesting systems at their home and up to $1000 to help install a greywater system at their home.
Full list of rebate opportunities.
How Can you Take Advantage?
There are five things you need in order to take advantage of these rebate opportunities:
- rebate class
- a water harvesting project plan
- a rebate pre-approval application
- a water harvesting system installed by a licensed contractor (That's us!)
- a final inspection of the installed project (conducted by City rebate program staff)