Construction Review Africa

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pushes the water into a submersible pump, thus “saving” a lot of the pump’s energy. Also, while the pumps themselves aren’t versatile, the selection certainly is. Some submersible pumps can easily handle solids, while some are better for liquids only. Submersible pumps are quiet, because they are under water, and one does not have to worry about cavitation, because there is no “spike” in pressure as the water flows through the pump Indeed, due to the fact that the pump uses no suction to get the water through to the pipes or hoses, the pressure is optimized. This allows the water to move over a greater distance, which can be useful for larger farms. Another significant advantage of a submersible pump however lies in the fact that unlike other types of pumps, they do not need to be primed before operating. This not only saves time, but also reduces risks of overexertion. However, caution must be used with submersible pumps; they must be fully submerged. The water around a submersible pump actually helps to cool the motor. If it is used out of water, it can overheat.

Mr. Ashok Patel the Chief Executive Officer of Kridha Limited insists that, submersible pumps are the ideal devices when one is dealing with underground water. This due to the fact that they are submerged into the water hence they are not exposed to sand or pebbles found on the surface which may cause blockages in case they find their way into the pipes. “The pumps are also automatic hence they pump the water whenever it is available,” he added. Kridha limited is a multi-disciplinary business entity that provides effective water treatment and related technologies. The company practices a professional consultancy agency specializing in water treatment systems and equipment. They also manufacture water treatment and recycling systems and equipment for industrial market as well as domestic sector. Standard and customized systems from Kridha Limited address concerns on water treatment and recycling, rainwater harvesting and waste water treatment. According to Mr. Patel the company has recently started to distribute water pumps from Wilo, a leading water pump

February 2017

The major advantage of a submersible pump is that it never has to be primed.

manufacturer based in Germany. “Wilo is a world leading manufacturer with a presence in over 80 countries and a total staff of over 8,200 worldwide. They offer the best prices and their pumps are long lasting with 6 to 7 years silence; plus they reduce power by 5%,” he added. Mr. Patel also pointed out substandard pumps as the main concern in the market.

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