Greywater For Humanity. How We Can Use Water 3 Times Beautifully
In Earthship design, greywater systems are integral to sustainable water management, recycling water from sinks and showers to nourish indoor botanical cells and supply toilets. This process not only conserves water but also supports plant growth and natural purification.
Plumbing and the Three-Way Valve
The greywater system collects water from household activities such as bathing and dishwashing, directing it through plumbing to interior planters, known as botanical cells, where it irrigates plants. A three-way valve is installed in the plumbing system, allowing occupants to bypass the greywater planters and send the water directly to the septic system when necessary, such as during maintenance or if the greywater quality is unsuitable for plant irrigation.
Submersible Pump and Toilet Flushing
After greywater passes through the botanical cells, it is collected in a reservoir. A submersible DC pump, equipped with a series of filters, automatically transfers this treated greywater to the toilet tank upon flushing. This system ensures that toilets are flushed with recycled water, reducing the demand for fresh water. The filters play a crucial role in removing any remaining particulates, ensuring the water used for flushing is clean and free from debris.
Suitable Soaps for Greywater Systems
The choice of soaps and detergents is vital to maintain the health of the greywater system and the plants it supports. Biodegradable, plant-based soaps are recommended, as they break down more easily and reduce the risk of harming the plants. Avoiding products with antibacterial agents and bleach is essential, as these chemicals can destroy beneficial bacteria in the planters and hinder the natural purification process.
Plant Interaction with Greywater
Plants within the greywater planters thrive on the nutrients present in the recycled water. As greywater passes through the planter beds, plant roots absorb nutrients and simultaneously filter out contaminants. The root systems, along with associated microorganisms, break down organic matter, reducing odors and purifying the water through natural biological processes. This symbiotic relationship not only cleans the water but also promotes healthy plant growth, creating a lush indoor environment.
Benefits of Greywater Systems in Earthships
Implementing greywater systems in Earthships offers multiple advantages:
- Water Conservation: Reusing greywater for plant irrigation and toilet flushing reduces the demand for fresh water, conserving this precious resource.
- Nutrient Recycling: Greywater contains nutrients beneficial to plants, effectively turning waste into a resource.
- Reduced Strain on Septic Systems: By diverting greywater from septic systems, the lifespan of these systems is extended, and the risk of overloading is minimized.
- Enhanced Indoor Air Quality: The presence of indoor plants contributes to improved air quality and the overall well-being of the occupants.
In summary, the integration of greywater systems in Earthship designs exemplifies sustainable living by efficiently recycling water, supporting plant life, and reducing environmental impact.