“A cistern liner is a flexible membrane, sometimes called a geomembrane. You can get them in PVC or EPDM.
Here’s a link to where we get our potable liners:
http://www.websweeper.com/liner/tank-liner/prices.php
water catchment
Desert Cisterns
An adequate freshwater supply is a basic necessity. Obtaining water can be especially challenging in deserts. The following photos illustrate a few simple methods for capturing and storing water in arid regions.
Yakhchal: Ancient Refrigerators
Gotta love the Internet as a bottomless source of incredible ideas. Today’s post is about the ancient ice storage structures in Persia. You can find this and many more articles about traditional earth building at Earth Architecture. “By 400 BC, Persian engineers had mastered the technique of storing ice in the middle of summer in … Read more
Earthbag Cisterns
Since water is vital to life, and there is increasing scarcity of clean drinking water in much of the world, it makes sense to store this precious resource and use it wisely. Earthbags in combination with ferrocement offer a number of interesting alternatives for storing water. Three different methods are shown below. www.flickr.com/photos/10349013@N02/2798383930 www.flickr.com/photos/11222150@N02/1082496465 http://earthbagplans.wordpress.com/2009/06/24/earthbag-cistern/