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When it comes to filling a water pump, there are several methods that can make the process easier and more efficient. One practical approach involves using a large bucket or water tank positioned near the pump, ensuring its bottom is slightly higher than the pump's outlet. Alternatively, you can construct a small reservoir near the pump house by digging a shallow pit and lining it with a waterproof material. Connect this reservoir to the pump using a hose. During downtime, simply fill the bucket or tank with water beforehand. Once the pump starts, the water will flow naturally due to gravity, eliminating the need for manual intervention.
Another innovative solution is the self-priming centrifugal pump, a relatively recent development in agricultural equipment. Unlike traditional pumps, these don't require priming valves. Simply pour a small amount of water into the pump before starting, and it will automatically draw water through vacuum action. Even after shutting down, restarting requires no additional priming. Our province has introduced SS-type models in sizes of 2, 3, and 4 inches, ideal for orchards and farmland irrigation. These pumps have also been adopted in construction sites and are increasingly popular for sprinkler irrigation systems.
A third method involves installing a cylindrical tank before the pump. The tank should have a hemispherical top and an intake pipe located at its midsection, with the nozzle positioned lower than the tank’s outlet. For the initial fill, pour water into the tank via the inlet and seal it. Once the pump starts, it quickly draws the water out, creating a vacuum that pulls water into the tank. This ensures a steady supply of water for continuous operation.
For smaller engines powering portable pumps, another technique uses an exhaust pump to create a vacuum. By attaching a special device to the engine's exhaust system, the exhaust gases expelled during operation are directed to remove air from the pump. As the exhaust gases exit at high velocity and low pressure, they create a vacuum effect. To begin, start the engine and press the handle of the exhaust water intake device downward to seal the exhaust port. Once water and bubbles emerge continuously, the pump begins drawing water. Afterward, close the vent on the pump body and release the handle to let the pump operate normally. This method is particularly suited for small gasoline or diesel-powered pumps.
Each of these methods offers unique advantages depending on your setup and needs. Whether you're managing a farm, a construction site, or simply looking for a reliable way to maintain water supply, these techniques provide practical solutions for efficient water management.