Customers that have a wide variation in water use should be supplied with a

• A. Single Meter
• B. Digital Meter
• C. Compound Meter
• D. Remote Meter

Answer: (C)

When customer demand varies greatly, you need a meter that stays accurate across a wide range of flows. A compound meter achieves this by using two metering elements with two registers—one optimized for low, small flows and another for higher, larger flows. As usage shifts, the high-flow element covers the larger volumes while the low-flow element remains accurate for small amounts, providing reliable readings throughout the entire range. This reduces billing errors for accounts with seasonal or erratic use, which is common for commercial, irrigation, or industrial customers. The other options don’t specifically address accuracy across a wide flow range: a single meter can falter at extremes, a digital meter refers to display/readout capability, and a remote meter describes how readings are collected rather than how flow is measured.