The fourth edition incorporates findings and data from the 2020 WRF project 4689 study; the 2016 “Residential End Uses of Water, Version 2” study (WRF project 4309B; DeOreo et al. 2016); and other studies including similar high-resolution demand profiling approaches. The “Residential End Uses of Water, Version 2” study provides an updated and expanded assessment of water use in single-family households across North America and presents detailed information and data about how water use has changed since WRF’s oft-cited 1999 “Residential End Uses of Water” was published (Mayer et al. 1999). These results and data as well as other entities advancing the knowledge of domestic water usage were used to develop a new methodology and calculator for sizing water meters for single-family and small to mid-sized multifamily buildings. Every chapter in the manual has been updated to include the latest information and guidance, and Chapter 4 has been significantly expanded from earlier editions.
AWWA M22
Original price was: $139.00.$69.00Current price is: $69.00.
M22: Sizing Water Service Lines and Meters
American Water Works Association , 2024
Pages: 155
AWWA M22
Original price was: $131.00.$65.00Current price is: $65.00.
M22: Sizing Water Service Lines and Meters
American Water Works Association , 2014
Pages: 133
The data presented in M22 were obtained from field measurements, utility surveys, technical publications, and hydraulic design calculations. This manual emphasizes that utilities having more information about a specific sizing situation will result in the best sizing decision from the tap to the meter. This information has been condensed into a simplified format to assist readers in addressing most common service conditions. The methods contained in this manual are appropriate for water utility managers, engineers, planners, technicians, field operations personnel, and consultants involved with designing and constructing projects requiring water service.
AWWA M22
Original price was: $114.00.$57.00Current price is: $57.00.
M22: Sizing Water Service Lines and Meters
American Water Works Association , 01/01/2004
Pages: 126
Historically, water utilities sized customer service connections and meters based upon the peak flow rates that the meter was expected to encounter. Since peak flows occur only rarely, meters sized in this way record the lower, average daily flow in the low end of their design range.
Unfortunately, many meter types are less accurate in the low end of their flow range with very low flows not captured at all. This results in lost legitimate revenue for the utility.
Many water utilities have recovered considerable water and revenue by right-sizing oversized customer meters. Right-sized water meters, because they more accurately record water consumption, can increase utility revenue, as well as reduce the amount of apparent water loss in the distribution system.
Properly sized service lines and meters provides many benefits for both the customer and the utility:
– Accurate measurements of water use, flow, and demand
– Less under-billing of customers, which increases utility revenue
– Optimum cost of service
– Reduced equipment maintenance
– Fewer customer complaints
– Reliable water-use data for better demand forecasting, improved hydraulic modeling, and enhanced water conservation planning
Topics include estimating consumer water flows, peak water demands, demand profiling, metering equipment, and procedures for calculating service lines and meters for optimum water revenue and lowest service cost. Includes numerous tables and sample calculations.
