The Permaculture Transition Manual by Ross Mars

Author:Ross Mars
Language: eng
Format: epub, pdf
ISBN: 9781550926309
Publisher: New Society Publishers
Published: 2016-03-12T05:00:00+00:00

Some rainwater tank systems are suitable for burial, and the storage “cubes” are wrapped in a waterproof fabric.

Connections to the house

Most people want to use the rainwater — either for drinking, to flush toilets or to wash clothes. Rainwater is most often pumped to the house, although gravity can be used in some cases to direct rainwater to fixtures in the house. Either a submersible pump, a pressure-tank pump or a pressure-switch pump is used to supply rainwater when required.

When the tap is turned on, or the toilet flushes, the pump is activated and gently pumps water to fill the tank, or enter the kitchen sink or washing machine.

If you wanted to use the rainwater for watering the garden, then think about how much water your plants actually need to survive.

If you work on 0.5 in of water every fourth day applied to the garden then you can calculate how much water you require. For example, if the garden bed is 400 ft2 (say 20 ft × 20 ft) then you require 100 gal. So, a 200 gal rainwater tank would only last for one week (two waterings).

It is always best to install the largest tank possible, keeping in mind the size restrictions you may have at your home and the cost. You don’t really need to water the garden in winter, so you should work on summer watering only.

» DID YOU KNOW?

Using 0.5 in as the preferred plant watering regime, this equates to 2.5 gal of water for every 10 square feet of garden.

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