Sump pump lifespan?

How many years does a sump pump lasts?
The question comes all the time from sump pump users. Technically speaking, the average life span of a sump pump is about 7 to 10 years. In this span of time, the pump works more efficient. But, there are some factors you should consider when your sump pump fails in less than 7 years. You should consider debris in the water, the quality of your pump, and voltage sufficiency.

Sump pump lifespan


You might also want to consider the maintenance and the usage of your pump. A pump that’s excessively massive tends to do more cycles, consequently shortening its lifespan. On the other hand, a too small pump may be insufficient and may not be able to pump out enough water. Sump pumps come in varied HP and range in pumping capacity and also range in energy efficiency.

Regular maintenance is a big factor that your sump will last long. Make sure that you are checking your pump frequently to ensure that it is working properly. Check your sump pits, make sure that any debris should be cleaned out and discarded. Any sediment, stone, or sand can do harm to pumps. Be proactive when it comes to your pump.

Generally, pick a pump that has correct size according to your area’s groundwater condition to get the most life out of it. It must have a reliable float switch for the sump pit and a dedicated electrical supply.

We already discussed how long does the sump pump last, now let us go deeper on the most common reasons for sump pump failures. Here are the most common problems that your sump pumps may be experienced.

Power failures

Weather storms often result in a power failure which is the result in flooded basements across the nation. This is because the excess water and power outages completely paralyzed the ability of your sump pump to drain water.

The right solution is to purchase and install a back-up generator for your unit. You can manually turn on your generator to ensure that the pump removes water out from your basement.

Wrong Size Sump Pump

An incorrectly sized sump pump will most likely give you problem. If your basement is relatively larger and has a larger area to be filled with water, small sized sump pumps forced to work harder, resulting in your pump to have a shorter lifespan.

Improper Installation

Read the manufacturer’s instruction carefully before the installation of the pump. Most of the manufacturers require a check valve to be installed on the discharge line. The backflow of the water can cause the pump impeller to rotate backward and unscrew off the motor shaft if you failed to install a check valve. The motor is still running but it is not pumping any water.

Switch Problems

Switch problem is the leading cause of sump pump failures. This usually occurs when the pump shifts from its position inside the basin and this make the float ineffective. Float is accountable for the smooth operation of the switch. This relies on both switch and floats arm mechanisms to operate effectively.

Clogged or Frozen Discharge Lines

Water exits from your basement through the discharge line. Make sure that discharge pipes are free from freezing, dirt rocks and other debris to avoid clogging. Protect the exit point of your discharge pipe for the optimal performance of your pump.

For frozen discharge lines, the grated covering cannot stop the lines from freezing. There should be a special grated discharge line attachment that is placed near your home or on the discharge line. This has openings that allow water to flow out of the pipe if the line is blocked further down.

Lack of Maintenance

Make sure to frequently check your pump before the rainy season comes. Most of the manufacturers recommend to run your pump every 2 to 3 months and some recommend to have it annually before the rainy season hits. Here is the list for manufacturer’s recommendation for the maintenance of your sump pumps:
• Use a back-up pump to run if the primary pump fails.
• Go outside when testing your sump pump to ensure it is discharging water.
• Make sure that the operation of the float is not restricted.
• Occasionally the pump can run but does not pump any water. This is caused by the impeller is disengaged from the pump shaft or check valve is installed backward.
• Replace the battery of your back-up sump pump every 2 to 3 years.

Product Defect

This is a rare occasion, but we can’t ignore the possibility of this happens. Initially install the pump to make sure the pump operates properly.


To be honest, we cannot avoid these problems with just maintenance. It concerns with a mechanical piece of equipment and mechanical pieces of equipment fail. Prevention is better than cure. Regular maintenance can avoid these issues and gives a longer lifespan of your pump.

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