nickb800: Do they allow a second meter to measure outdoor water use? I've heard of this in the states, an arrangement where all outdoor taps run off a separate sub-meter, so they charge your water consumption off the main meter, and then your wastewater consumption based on the difference between the two meters
Yes you can. What you want is an irrigation meter. You apply for one via Watercare's standard "new water meter / new connection process". Watercare will install a second meter next to your existing one. You then need to pay a plumber to install a new pipe from that meter and connect it to your hose taps and irrigation system.