ISBN-13: 9780993389214 / Angielski / Twarda / 2016 / 328 str.
ISBN-13: 9780993389214 / Angielski / Twarda / 2016 / 328 str.
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.