Commercial septic systems sometimes need to remove wastewater from the premises moving from a low-pressure to a high-pressure environment. Wastewater is removed in this manner in order to overcome issues related to gravity and geographical obstacles. In order for this to happen, the septic system must use lift pumps. These pumps move waste into a drainfield for safe filtering. Unfortunately, lift pumps can fail just like any other mechanical part of the system. When they do fail, commercial septic tank owners typically notice that the tank begins to overflow or develop a bad smell. To know if this is the issue you’re dealing with, check out our troubleshooting tips to determine if you need professional commercial septic tank services.


You can learn a lot about your building’s septic system by listening to it, especially when you’re dealing with the lift pump. If the lift pump sounds like its operation keeps getting interrupted or it’s not making any sound, it’s very probable that it has jammed or become clogged.

It’s not uncommon for lift pumps to develop clogs. The good news is that clogs are easily removed, and the pump should work good as new.


Sometimes wastewater and effluent back up into the septic system. When this happens, the culprit is usually a faulty valve. The valve isn’t creating enough pressure and allowing leaks. If the pressure isn’t the issue, it could be that the valve is cracked or the seal needs replacement. In order to stop the leak and get the lift pump working again, you need to have the valve fixed.

Float Problems

Some lift pumps use a float. This device is used to check sewage levels. However, sometimes the float gets damaged or it becomes stuck. When this happens, the lift pump won’t work. Often, all you need to do is fix whatever’s causing the float to stick. In some instances, you need to completely replace the float. Check with your septic tank specialists to figure out the best solution.

Too Much Water

Do you have a time-dosed system? If so, you might end up with this problem. In this situation, the tank takes on too much water too fast. The lift pump isn’t able to clear out the tank in enough time and problems like spillage occur. Most of the time, all you need to do is adjust the timing of the septic system and the problem goes away.

Wiring Problems

Does it appear that your lift pump isn’t working at all? If it’s not working and doesn’t respond to the previous troubleshooting techniques, there’s a good chance that you have a wiring problem. Start by checking your circuit breaker to make sure it’s getting power. If the circuit breaker looks good, use a multimeter device to check that the wires to the septic system to see which are getting power and those that aren’t. This helps you narrow down what wires need replacing.

A Bad Motor

If it doesn’t appear to be a wiring problem and electricity is getting to the pump, it’s likely you’re dealing with a bad motor. Unfortunately, when you find yourself in this situation, it’s best to call for professional septic tank repair services to replace the motor.

Taking Care of Commercial Septic Tank Parts

Like any sort of plumbing fixture, mechanical parts break down and some parts need replacement sooner than others. Commercial septic systems take on large waste loads and require frequent maintenance to make sure everything runs smoothly, including the lift pumps. With regular maintenance checks, it’s easier to spot small problems that have the potential to shut down your system.

Do you need commercial septic tank maintenance or repair services? If so, contact Street Works Engineering. Our sewer and septic contractors work on commercial-grade septic tanks all the time and know the most common problems that happen to high-volume tanks. We know how to identify problems quickly and make accurate diagnosis and repairs.

Don’t let septic tank problems cause your business to shut down because of raw sewage backups or spills. Instead, contact the local pros with 30+ years of serving the communities of Los Angeles, Orange County, and San Bernardino. We’re ready to send someone right now. So, call Street Works Engineering at (866) 377-4002.