Water is one of the first systems the books recommend establishing. Rainwater collection is presented as a practical off-grid source, particularly when water is collected from a roof and directed into storage.
Build the collection system
The book identifies five basic components:
- A suitable roof, with metal roofing presented as a collection-friendly option.
- Gutters and downspouts.
- A first-flush diverter.
- A storage system.
- A distribution system.
The first-flush stage is intended to divert the initial roof runoff carrying accumulated dirt, pollen and leaves.
Storage
The book recommends opaque, UV-resistant storage to reduce algae growth and discusses materials such as concrete or steel when appropriately lined. Storage can be elevated for gravity-fed distribution or placed underground with a pump system.
Plan for winter
The chapter includes winter-proofing the water system. A real system needs to be designed around the local climate and the possibility of freezing.
Filtration and purification
The book separates water collection and storage from filtration and purification. Collected water is not automatically ready to drink. The book includes a DIY filter section, but this material should be treated as a starting point rather than a guarantee of potable-water safety. The book's own disclaimer says professional advice may be needed where appropriate.
Greywater and blackwater
The chapter also connects water management to sanitation. Water leaving the household must be handled deliberately rather than allowed to contaminate the property.
Water-system checklist
Before installing anything, identify:
- Collection surface.
- Gutter and downspout route.
- First-flush arrangement.
- Tank location.
- Overflow route.
- Distribution method.
- Winter protection.
- Filtration/purification method.
- Local water-collection rules.
The books also explicitly tell readers to check local laws because water rights and rainwater rules vary by location.