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Troubleshooting? Then check your Samson pumps!

Samson Pumps supplies the market with the best performing pumps for trucks and fish operations. This is reflected by the high level of customer satisfaction achieved, namely 97,14%. Consequently, when you acquire a Samson pump, you can be sure that you acquire the highest quality on the market. However, if you experience troubles with your pump we recommend going through this article to identify the problem of your pump and the correction measures you must take.

1. Problems when starting the pump

If the pump does not operate properly when it starts, make sure that the motor and the pump are connected to function in the same direction. Many times, OEMs and end-users forget to check the rotation direction. Subsequently, they experience troubles when starting their pumps. As you can see in the picture below, the arrow on the pump will indicate its rotation direction.

Another problem that can arrive when starting the pump is that the start-up power is too high. This is caused by the fact that the pump is receiving too much service liquid and if not taking any correction measures, it can worn-up the pump. Check therefore that the pump receives the adequate service liquid.

2. Problems with creating the vacuum required

A liquid ring pump cannot operate if not serviced with water. When the pump fails to obtain the vacuum you need, assure yourself that the pump has the proper amount of liquid service. Check also that the supply lines for the operating liquid are not blocked. A certain volume of service liquid will be lost while the pump is operating. The pump must therefore be constantly supplied with new service liquid. In addition to replacing any lost liquid, the new liquid supply will cool the compressor gas in the pump and lubricate the mechanical shafts seals.

Another reason for which the pump is unable to create the vacuum level required can be caused by the temperature of the service liquid. When the temperature of the service liquid is too high, the pump will be unable to create the required vacuum. The cooler the operating liquid is, the higher maximum vacuum that can be obtained. In case that the temperature of the service liquid is too high, you must stop the pump and wait until the temperature has dropped to a sufficient level or lower the temperature of the service liquid inlet.

3. Problems with excessive noise

Samson pumps are known for the fact that when in operations they produce the lowest noise level possible. Therefore, if the pump is making too much noise, we recommend you checking the following:

The service liquid

If the service liquid is too low or if the pump is supplied with excessive liquid service, the noise level of the pump might increase when the pump is operating. The pump must therefore always be supplied with the recommended service liquid.


Noise during operation can be also caused by cavitation and can severely damage the pump, there being even the risk of breakdown. In this situation, the suction pressure must be increased, or the temperature of the service liquid must be lowered.

Misaligning coupling & faulty bearings

In case of high noise level, please check that the couplings are perfectly aligned as well as check the bearings as if these are worn up they must be replaced with new bearings.

Foreign objects in the pump

The high noise level can also be caused by foreign objects that came inside the pump chamber. In this case the pump must be disable and the foreign objects must be removed.

After identifying the problem and taking the measures recommended in this article, we doubt that you will experience any troubles. However, we recommend you going through the pump’s manual (which you can find on the pump’s site) to ensure that you are properly operating your pump. You are also more than welcome to contact us in case that you still have questions or need technical assistance.