The North Carolina building code prevents homeowners from using rainwater in their homes for anything besides irrigation. So what are some of the banned uses for this free water?
1. Rainwater for your Toilet. Typically, 25% of your water uses is literally flushed down the toilet. What if you could you rainwater to flush your toilet? Here is a cool how to guide that I have on my “when I have time” projects.
2. Rainwater for your Washing Machine. Washing clothes represents 20 percent. I am not sure if I am ready to try this, though.
Together both of these uses would represent 50% of indoor water use using this resource. Not too bad.
North Carolina is currently considering altering its building codes to allow expanded use of rainwater. If the proposal goes through, the new code takes effect in January. I am not sure if similiar impediments exist in other Southeastern states.