Managing Business Responsibly

Troubleshooting High-Pressure Pumps: Common Issues And Solutions

by Priscilla Terry

High-pressure pumps are a vital part of many industries, from manufacturing to food and beverage processing. They are also one of the most common types of pumps used in residential and commercial settings.

While these pumps are typically very reliable, they can sometimes experience issues. Below are two common high-pressure pump problems and their solutions.

Low Flow Rate

A low flow rate can be quite frustrating, especially if you're not sure what the cause is. Fortunately, there are a few things you can check to troubleshoot this problem.

First, you need to carefully monitor the suction line. The suction line is the pipe that brings water into the pump. If there is any blockage or restriction in this line, it will cause a decrease in flow rate. Make sure to remove any debris or build-up that could be restricting flow.

If the suction line appears clear, the next step is to check the discharge valve. Often, a discharge valve that is not fully open can only allow a certain amount of water to flow through, resulting in a low flow rate. Make sure to open the valve all the way to restore proper flow.

If you have checked both the suction and discharge lines and there are no restrictions, the problem may be with the pump itself. Maybe the impeller is damaged, or the bearings are too worn out to function properly. In this case, it is best to consult with a qualified technician who can diagnose and repair the issue without causing further damage.


Sometimes, your pump might produce some strange noises that can be quite alarming. The noises could be coming from inside the pump or from the piping. But before you panic, there are a few things you should check.

First, take a look at the intake screen. If this is clogged or dirty, it can cause the pump to make strange noises as it tries to bring water in. Clean or replace the screen as necessary to reduce noise.

Air in the pump system can also cause noise. If there is too much air in the system, it can cause the pump to "cavitate." This means that pockets of air form and then collapse, causing a banging noise. To get rid of this problem, you need to "bleed" the system by opening the bleed valve and allowing air to escape.

If the pump is still noisy after checking these two things, it could be due to a loose internal component rattling around. Maybe a screw or washer has come loose and is grinding against the metal. This serious issue should be addressed by a qualified technician as soon as possible, as it can cause extensive damage to the pump.

For more information on high-pressure pumps, contact a company near you.