Sump Pump Failures From Storms

3/6/2019 (Permalink)

A sump pump is an important part of your basement and makes sure that your basement doesn't flood. A sump pumps job is to redirect water away from a house and into a dry well when it is raining but a sump pump can fail for 7 reasons:

7 Things that Cause Sump Pump Failure

1. Power Failure

The most common cause for sump pump failure is an electrical power outage. To prevent this, have a backup generator that can be manually activated. In the case that your primary pump mechanically fails, though, a generator cannot help in this situation. But in the event of a storm where the power is knocked out for any length of time, a backup generator can be a lifesaver.

On the same topic of power, some components of the sump pump may be vulnerable to damage from power surges. To prevent this, protect the entire electrical system from power surges with a service entrance surge protection device.

2. The Sump Pump is the Wrong Size

If you have an incorrectly sized pump, or if the pump is not installed properly, there will most likely be a problem. A small sump pump is often just as effective as a big one. When a sump pump is too big, the pump is forced to work harder, resulting in a shorter product lifespan. But if it’s too small, it may not be able to adequately pump out the water – again resulting in a shorter lifespan.

3. Improper Installation

Installing a sump pump must be done exactly right. Manufacturer’s instructions must be followed carefully for the installation in order to avoid severe water damage down the road. Most manufacturers recommend or require a check valve to be installed on the discharge line. If not installed, the back-flow of water can cause the pump impeller to rotate backwards and unscrew off the motor shaft. In this scenario, you will still hear the pump motor running, but it would not be pumping any water.

Most manufacturers require the drilling of a small air relief hole in the discharge line between the pump and the check valve which is intended to prevent the pump from having to overcome the air pressure in the discharge pipe. The discharge pipe must be of the required diameter.

Lastly, the sump pump pit should not be set in dirt or gravel. This causes debris to enter into your pump and can result in interference with the pump’s on/off switch or float arm.

4. Switch Problems

The leading mechanical cause of sump pump problems is a switch problem. This occurs when the pump shifts from its position inside the basin, rendering the float ineffective. Float is responsible for the smooth operation of the on/off switch. Your sump pump relies on both the switch and the float arm mechanisms to operate effectively.

5. Lack of Maintenance

Some pump manufacturers recommend the pump to be run every 2-3 months. Some recommend a yearly program completed just before the rainy season hits.

Here are some additional manufacturer recommendations:

• If there is a back-up pump, unplug the primary pump and run the back-up pump to make sure it works properly
• When testing your sump pump, go outside to make sure it is discharging water
• Sometimes the pump can run but not pump any water. This means the impeller has disengaged from the pump shaft or the check valve is installed backwards.
• Check the operation of the float to make sure it is not restricted
• Clean out the air hole in the discharge line
• Listen for any unusual noises when the motor is running
• Replace the battery on the back-up sump pump every 2 or 3 years

6. Frozen or Clogged Discharge Lines

If water cannot exit your home through the discharge line, your system will not work. It is important to keep the discharge pipe protected from freezing and free of sticks, dirt, rocks and other debris. Protecting the water’s exit point of the discharge pipe will keep debris and animals out of the system, making it optimal for your sump pump.

Grated covering will not stop the lines from freezing or becoming blocked by ice and snow. A special grated discharge line attachment should help; it is placed near your home on the discharge line. It includes openings that give water a way to flow out of the pipe if the line is blocked further down.

7. Product Defect

Though rare, product defect is always a possibility and does happen. It is wise to test the pump when it is initially installed to make sure the pump operates properly.

If your basement does flood because of a sump pump failure make sure to call SERVPRO of Mount Ephraim/ Bellmawr for all of your flood needs at (856) 349-7318.