The Resilience Hub & Portland Maine Permaculture Message Board › cistern material
South Berwick, ME
The topic of cisterns came up at this month's meeting, and folks were wondering what they were made of .
I met with Sharon England of SkyJuice New England (rain barrel source for PWD promotion...), and asked her what they use.
If it's an above ground system, it's some sort of plastic.
However, if it's buried, it is simply a modified septic tank. They add another hole at the bottom for an outlet that is then pumped back to your house, an outdoor spigot for watering, or whatever. She said they have one client who plumbed it back into the house (labeled as non-potable water) and they used it for flushing toilets, showers, and all watering of plants.