As a further example, the use of “best-practice” solutions for network rehabilitation has resulted in large savings in capital expenditure. The following are quotations from publications of customers:
- “….enhancements would cost over R30m……However, HCE recommended an alternative supply philosophy in which pressure in the town would be controlled by a system of towers. Design based on this approach resulted in recommended upgrades of merely R13m, reducing capital expenditure by almost 60%”. IMESA article quote by Andre Brummer, Town Engineer of Walvis Bay Municipality, Namibia on Master Plan Study.
- “Savings in Capital Expenditure: The use of water conservation principles as already described are showing huge monetary savings in terms of capital expenditure. Completed studies in three of the villages comparisons with traditional designs methods, show that required capital expenditure can be reduced to less than half”, N.Talyane, Principal Eng., DWA, Botswana.
- Similar savings are seen in more recent studies such as the Madibeng Network rehabilitation plan and the Swaziland rehabilitation plan both with capital savings more that 50% of budgeted figures.
- “Although authorised consumption increased by 12.7% supply into the area has been reduced by 31.9%. The main reason for this drop is the decrease in leakage (by 69.3%) followed by also a considerable decrease in Wastage and Internal leakage (26.4%) and to a lesser extend to an improvement in consumption behaviour. Un-Accounted for Water (Water Losses) dropped almost to half”, 2013 press release, referring to Motherwell, a city of 300,000 people, in Nelson Mandela, South Africa.
- “The audit revealed that 75 megalitres a day – 45% of all the water produced — was lost because of leaks in the system. Matsie said it had also emerged that the municipality had about 5 900 residential non-paying consumers and about 235 non-residential consumers not paying for water. There were an estimated 7 800 illegal connections. Other problems identified included stuck water meters, undersized and old water meters, properties with no meters, and meters with no readings. Matsie said steps would be taken to make the water network more efficient and reduce leaks by as much as 30%.” press release February 2012 by Sol Plaatje Municipality, South Africa.