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Replacing old cast-iron pipes will take a lot of money and time

by pointe team
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The Antigua Public Utilities Authority has a major challenge on hand; the

replacement of the old cast-iron pipes, through which much of the water reaches

homes and businesses on Antigua.

According to Utilities Minister Melford Nicholas, the cost for replacing these old

pipes will be astronomical. He explained that there are some 37 miles of such pipes

underground, which make up as much as eighty percent of the distribution pipes in

the APUA’s system.

“APUA had started replacing these pipes with PVC pipes some years ago. It was

however discovered that these pipes were vulnerable to earth movement caused by

periods of rainfall, followed by periods of extreme dry weather. Under these

conditions, these PVC pipes cracked and developed leaks. Since 2016, APUA

moved to using High Density Polyethylene (HDP) pipes which are more resilient

and less prone to leaks,” he further explained.

Minister Nicholas revealed that the cost to replace the old pipes with the HDP

pipes would be significant, however, APUA must make the investments. “To

remove and replace ten miles of pipes, (roughly one third) will cost some $40

million. This is going to be an ongoing project running over several years. There

are lots of these pipes underground, lots to be replaced, but we are still committed

to dealing with the urgent need to make water available to every household, every

day,” he remarked.

He disclosed that APUA has to increase production of water, as the seven million

gallons daily production is still roughly three million gallons short of the daily

demand for water. Under these circumstances, the focus is to increase the

production from the current reverse osmosis plants, as well as to add new

production capacity from the new plant at Bethesda, which will come on line in

short order.

The utilities minister also spoke of a need to upgrade the switching system that

turns on and off the various valves, from the current manual, to a more efficient

automated system. Along with replacing the antiquated pipes, replacing these

manual systems is another area of concern for the authority.

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