Using Water Reservoirs to Lower Your Garden Water Costs
Harvesting rainwater in a backyard reservoir can cut municipal water bills by 30–70 % while insulating your garden from drought-driven rate hikes. A single 1,000-litre tank, filled six times a year, offsets roughly 6 m³ of metered water—enough to irrigate 50 m² of vegetables for an entire growing season. Below-ground cisterns stay cooler, suppress algae,…