How to Build a Natural Swimming Pool
Thon, Andreas / Kircher, Wolfram![How to Build a Natural Swimming Pool](https://support.digitalhusky.com/media/annotations/sorted/191/19123604/CHSBZCOP0319123604.jpg)
Natural swimming pools are cleaned by plants instead of chlorine so they are gentle on the eyes and healthy for swimmers. This book describes how to build a pool to suit your site and maintain the nutrient level in perfect balance to keep the algae down and the water sparkling.