Thinking of designing an off grid rainwater supply system for your home?
Our Essential Rainwater Harvesting Tool is a spreadsheet tool for performing rainwater system sizing analyses. It contains beautifully formatted tables, formulas and logic presented for optimizing tank size, plus many more advanced features.
Programmed with rainfall data for all major US and Canadian cities it's ready-to-go. In no time you’ll be evaluating your project and selecting the size of your roof and storage containers to best meet your needs for the least possible cost.
Your purchase also includes a subscription to the Essential Rainwater Harvesting Toolkit which contains tons of free resources, including video tutorials for using the tool as well as sizing examples, rainfall data, links to relevant research, and much more.
Requires Microsoft Excel (Windows) or Excel for Mac.
Step 1. Click "Add to Cart"
Step 2. input your coupon code (offgrid_stack) and click "Apply Coupon" this will set the tool to free.
Step 3. Then click "Checkout" On the next page fill in your details and chose a username and password.
Step 4. Then click "Place Order"