Should There Be Water in My Sump Pump Pit?

If your home relies on a sump pump and you notice water pooling in the pit or basin, you may be wondering if it's normal or if your system is completely malfunctioning.

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The good news? In most cases, there's nothing to worry about, as there should be water in your sump pump pit. However, if the basin has more than a few inches of water or it appears totally dry, you may need to do some investigating.

Should There Be Water in My Sump Pump Pit?

It's completely normal for your sump pump to have a few inches of water in the basin. Sump pumps work by collecting moisture due to rain, snow and normal groundwater functions. When the water in the pit rises to a predetermined level, your sump pump should automatically start pumping the water out and away from your home's foundation.

Is It Normal for a Sump Pump Pit to Be Dry?

If your sump pump pit is completely dry, it may simply be due to unusually dry weather. However, overly dry sump pump basins may also occur if there are drainage issues somewhere within the sump system. Plus, overly dry sump pits can sometimes cause the pump's rubber components to dry out. To ensure your system is working as it should, it's always best to consult with a professional plumber.

Why Is There No Water in My Sump Pump Pit?

Your sump pump pit may be dry because there are no immediate flood risks, such as a heavy rainstorm or melting snow. In most cases, sump pump pits contain a few inches of water at all times. A small amount of moisture actually helps internal parts and components remain lubricated, which may prevent the need for major repairs or replacements down the line.

How Much Water Should Be in a Sump Pump Pit?

While it's okay for your sump pump pit to remain dry, there should ideally be some water in your sump pump pit. Some plumbers prefer basins to hold a few inches of water to help maintain the pump and its components. If your sump pump pit is bone dry and you're concerned about a drainage problem or other issue with the pump, it's a good idea to contact a licensed plumber.

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How Does Water Get Into a Sump Pit?

Water enters a sump pit through an intricate pipe system installed above and beneath the soil near your home's foundation. Referred to as drain tiles, these pipes catch moisture from snow, rain and groundwater and pump them into the sump pit. When the pit fills with water and it reaches a certain level, the pump automatically turns on.

Water levels can vary depending on the size, capacity and model of your sump pump. After the pump turns on, it pushes the water out and away from the foundation and into a storm drain, well or neighborhood drain.

How High Should the Water Level Be in a Sump Pit?

Specific sump pit water levels can vary based on the specifications of your sump pump. However, most standard pumps have a limit of around 7 gallons. The water levels are monitored by a component called a float switch. The float mechanism "floats" on the rising water in the pit. Once the float switch detects the set water level, a pump is activated to push the water out of the pit and away from the home.