Nissa Gadbois wrote:Well this is cool! Thank you so much for this link. I can't wait to see what it says.
Kim Goodwin wrote:This is the calculator I've been using while designing our rainwater catchment in Arizona:
Rain Harvesting Calculator with monthly estimates and including drawdown (your usage)
Kim Goodwin wrote:This is the calculator I've been using while designing our rainwater catchment in Arizona:
Rain Harvesting Calculator with monthly estimates and including drawdown (your usage)
John C Daley wrote:My signature has details about capturing and using rainwater.
But what size roof and what rainfall do you have?
You dont need to hold one years supply in the tank.
I have 450mm rainfall and have a 20,000L tank.
Underground tanks are a bigger cost but great for freezing areas.
If you were building I would suggest a tank in the basement or even a barn with a small heater.
Jt Lamb wrote:Re-reading the OP, I don't think I quite understand the scenario ... is there an existing home and a new (small) one going in as well? Or raw land with a small home going on it?
Any new construction triggers requirements to the latest code item an AHJ cares about. Old stuff might get grandfathered in, but new construction triggers incredible requirements.