From Roof to Faucet: Understanding Catchment Water on the Big Island
Rainwater catchment is common in East Hawaiʻi, and it can provide excellent water when the system is designed and maintained well. The key difference is that buyers need to understand the full system: roof, gutters, tank, pump, filters, UV treatment, and often reverse osmosis for drinking water. Catchment takes maintenance, but it is also part of what makes it possible to live affordably in some of the most beautiful parts of the Big Island.