Build It Solar website shares how to build and maintain a rain harvest system on a larger scale than a 55 gallon plastic barrel…. 500 gallons and beyond.
This article addresses how to measure how much rainwater you could harvest, how to build it, collection of the rainwater ( gutters and piping to tank inlet ) , plumbing and pumps to deliver water to garden, system to manage overflow, performance and winter temperature maintenance.
Check your local laws on rainwater harvesting before you start your project.
In many states it is illegal to harvest the rainwater AFTER it has touched the ground but is perfectly legal to harvest rainwater collected from your rooftop.
Having a metal roof is a great benefit, but any type of roof will work.
