To answer this question, we should first know the working method of water suction hose. The water suction hose connects to a pump. One side of hose connect to the pump, while the other side put into the water resources like river, lake or pond.
The impeller is constantly rotating in the pump casing full of water. While the water between the blades on the impeller is subjected to centrifugal movement by centrifugal force. It rushes to the casing at a certain speed and pressure and flows into the pump through the flow passage in the casing.
At the same time, the central part of the impeller forms a vacuum. Under the action of atmospheric pressure, the water in the suction pipe flows into the central part of the impeller to fill this vacuum area. After the water flowing into the central part of the impeller is subjected to centrifugal force, It flows into the outlet pipe of the water pump through the shell.
Knowing the working method of the water suction hose and pump, we may find that the pump plays an important part. There are some reasons that cause suck less water.
We know that the pump is electric drive. Thus if the voltage is low, then it can’t pump the water. Therefore, we can adjust the voltage to solve it.
After a long time, some parts of the pump may breaks. Besides, the corrosion, abrasion and leaking will make the pump fail to pump water. Therefore, we can change the broken parts to new ones to continue the work.
The rust will block the pump, so the water can’t flow smoothly. As long as we find out the blocked parts and the clean it, the work can continue.
The pump position
As we all know, the higher the pump is, the more power it needs to suck the water. So a high position of pump will cause a low power, then the water will not able to be sucked up.
These are the reasons that cause failure on water suction in pump aspect. Only pump problems cause failure on water suction? Of course not, let’s talk about other reasons next.