Study of Commercial Water Losses in PDAM Maja Tirta, Mojokerto City Bowo Djoko Marsono (1*), Ika Roichatul Jannah (1)
(1) Department of Environmental Engineering, Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember Surabaya 60111, Indonesia
*Corresponding author^s email: bowodjok[at]enviro.its.ac.id
Abstract
Water losses is a problem that often occurs in PDAM (Perusahaan Daerah Air Minum) including PDAM Maja Tirta, Mojokerto City. Water meters at customer connections that have been installed for a long time and have never been calibrated have the possibility to decrease in accuracy, causing commercial water losses. This study starts with a literature study about water losses. Then collected secondary data from PDAM Maja Tirta Mojokerto City in the form of service maps, the number and address of customers, the volume of water input that enters the distribution system, the system output volume, and tariffs or prices water. From the secondary data, an analysis can be done to determine the number and location of sampling using the method described in SNI 05-0666 of 1997. The primary data that will be take is the accuracy of the customer^s water meter measurements. From the results of the study, the level of commecial water loss due to the accuracy of the water meter was 8,52% from input system volume (total distributed water) or 148,160.42 m3. Control of commercial water losses can be done by periodically measuring the customer^s water meter, replacing damaged water meter, and adding input system water meter.
Keywords: PDAM, Commercial Water Losses, water meter
Topic: Environmental Science, Technology, and Education
