Malaysia may have one of the highest per capita rainfalls in the world but they also manage to lose a lot of water from the pipes distributing it. It is estimated that over 4 billion litres of water is lost every day from leaks. This is a staggering 36% of the total water pumped out of treatment plants. In some states, over 50% of the water is lost, with loss rates ranging from just 17% in Penang up to 66% in Perlis. This is called Non-Revenue Water, and it has been recognised as a problem for a long time as most of the water pipes in the country have passed their estimated useful lifespans.
By comparison, the UK loses just under 20% of its treated water. Singapore is considered the most efficient country at water distribution, with a loss of just 5%, although the challenges in such a tiny area are understandably much smaller. The overall problem with water supply is exacerbated by the fact Malaysia has a very high per capita water consumption rate.
It is estimated it would cost around RM20 billion to repair and/or replace all the pipes. However, the challenge is greater than just replacing pipes, although this is where most of the cost will be incurred. A new national policy is now being developed to see what can be done to address this problem.
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