What is the reason why the pump pressure is not enough every time the water is changed in the fish t

1. What is the reason for the insufficient pressure of the water pump?

There are several reasons for the pressure to be too small: 1. If the inlet of the pump is full, when there is no pressure in the pump used for the first time, it is likely that the pump is reversed.

2. There is air in the water supply pipe and pump body. 3. The suction range is too large. 4. The resistance loss of the inlet and outlet pipes is too large.

5. The pump inlet is blocked or the water inlet is insufficient. 6. Centrifugal pump.

The motor speed is too low.

2. What are the precautions for pump installation?

1. If there is a small fault in the water pump, please make sure that it does not work, if the sealing gasket of the water pump shaft is worn, it must be added in time, if it continues to be used, it will leak, the direct effect of this is to increase the energy consumption of the motor, thereby damaging the impeller.

2. If there is a strong vibration of the pump during operation, it must be the best problem, and we must stop working in time and check the cause to avoid causing greater damage to the pump.

3. The water pump needs to be maintained after use, for example, when the water pump is used up, the water pump needs to be emptied, it is best to disconnect the water pipe and rinse with clean water.

5. Carefully check whether the impeller is cracked, whether the impeller fixed on the bearing is loose, if there is a crack or loosening, please repair it in time, if there is mud in the pump impeller, please clean it.

It should be that your water pump is inhaled, turn off the water pump and wait for about 10 seconds, and then turn it on again.

If there is no foreign object blocking the water inlet, the water pump is inlet and the discharge is normal.

There is air in the inlet pipe and pump body, which may not be filled with water before the self-priming pump starts, or it may be that the pump body and the inlet pipe foundation have a high downslope, or the pump has a high age and wears or the packing is too loose.

The speed of the pump is too low The speed of the pump is low and can not achieve the effect of self-priming, and there is no pumping, or the pumping power is insufficient, resulting in the pump pumping water, these factors are common in mechanical failure, improper installation, damage to the motor factors, improper configuration of the motor and other reasons.

The suction lift is too large This may be closely related to the water source and the surrounding terrain, and the maximum suction lift of the pump is ignored, so the pump cannot suck water at all after it works. Therefore, when using a water pump, we must first understand the characteristics of the self-priming centrifugal pump and the maximum suction lift, depending on the occasion of use.

1. The pump does not absorb water, and the pointer of the pressure gauge and vacuum beats violently.

If there is not enough water to be injected, or there is a leak in the pipe or instrument, it is necessary to fill the pump with water and tighten the plug to plug the leak.

Second, the pump does not absorb water, and the vacuum gauge shows high vacuum.

1. Check whether the bottom valve is open or whether there is any blockage, open and clean or replace the bottom valve.

2. The resistance of the suction pipe is too great: clean or replace the suction pipe.

3. The water absorption height is too high: reduce the water absorption height.

3. The pump does not produce water, and the pressure gauge shows the pressure.

1. The resistance of the outlet pipe is too great: check or shorten the outlet pipeline.

2. Wrong direction of rotation: correct the direction of rotation of the motor.

3. Impeller blockage: clean the impeller.

4. Insufficient speed: increase the speed.

The submersible pump of the fish tank adjusts the large amount of water, so it can be adjusted smaller, as long as the regulator on the submersible pump is passed, the amount of water can be controlled at will.

1. The pump water flow is large, you take the pump out to see if there is a sliding part, and write on the side"+"While writing"－"Yes, you can adjust that one, I have some pumps, some don't, atman life

Tech pumps should have them all.

2. The water outlet of the filter box rings, which is a little good for dissolved oxygen, if you really like it, you can card something at the water outlet, extend the water outlet pipe, or adjust the water surface to be close to the water outlet, and the drop will not sound if the drop is small.

Hello dear, it may be these reasons 1There is air between the inlet pipe of the fish tank and the water pump, and generally if the water pump is not working, this situation is more common. At the same time, it is more difficult to repair when this happens, and it is more difficult to find the problem part.

For example, it may be because the pump is not filled with water before it starts, or it may be due to a high slope of contact between the pump and the inlet pipe. Or because the pump has been used for a long time, it may be worn or the device is too loose. If the pump is turned off for a long time and not used frequently, corrosion may occur, causing cracks and other problems on the pump.

2.The speed of the water pump is relatively low, if the speed of the water pump is relatively low, it may not achieve the effect of self-priming, and there will be no pumping or insufficient power, resulting in no water pumping from the pump not working. The most common cause of these situations is a malfunction of the machinery, either because of a problem during the installation or because of the motor.

The reasons why the pump of the fish tank cannot get water are: 1. There is air in the inlet pipe and the pump body, and it is necessary to check whether it is filled with water immediately, and at the same time see if there is any wear or too loose phenomenon that causes the pump to not pump water; 2. The speed of the pump is too low, due to the lack of power, it cannot meet the effect of self-priming, so that there is no pumping, if it is not a mechanical failure, it is necessary to change to a pump with higher power; 3. The suction stroke of the pump is relatively large, which exceeds its maximum suction stroke, resulting in its inability to absorb water after working and cannot be used normally.

The reason why the pump does not turn may be 1 power outage, 2 switch is broken, 3 wires are broken, and 4 water pump is burned.

If it is the pump in the picture above, he will automatically protect it when he takes out the water. It's normal to put it in the water.