On Waiheke Island, your rainwater system isn’t just a utility — it’s your lifeline. With local homes relying entirely on roof-collected rainwater, maintaining the full harvesting-to-tap system is critical, particularly during the dry summer months. We are Waiheke Island’s rainwater system experts, and we make rainwater safe to drink for you and your family. Check out the Tankman Guide to water systems on Waiheke.