How to Adjust Sump Pumps

1/3 HP Submersible Sump Pump

Any homeowner with a cellar knows that a sump pump plays an essential role in protecting the value and structural integrity of your home. Sump pump failure can result in costly damage to your cellar and any goods you may have stored there. A little bit of protection is better than a ton of post-mishap fixes, so the only way to protect your property from sump pump failure is to check it regularly for proper operation. Whether your sump pump is new, or has given years of faithful service, if you need to make an adjustment, the time to do it is before the rain starts to fall.

Things You'll Need

• Flashlight
• Bucket with several gallons of water

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Instructions

How to Adjust Sump Pumps

1. Remove the cover from the sump pump well. Shine the flashlight into the sump pump well. Visually check the well to insure there is no debris which might interfere with the impeller. Remove any debris that may have accumulated since your last maintenance check.

2. Inspect the inlet screen to insure it is free of any debris or obstruction. Remove any accumulated debris.

3. Pour water from the bucket into the well. Watch for the float to engage the float switch and trigger the pump. If the pump starts and the water level rapidly decreases, your sump pump system is in proper working order. Cover the sump pump well and prepare to inspect it again in one month. If the sump pump does not engage or if the water level does not decrease proceed to Step Four.

4. Unplug the sump pump from the electrical outlet. Inspect the float mechanism to insure there is nothing obstructing it. Adjust the sump pump by repositioning it in the well to prevent the float from hanging. Plug the sump pump back into the electrical outlet.

5. Pour water from the bucket into the well. If the sump pump still fails to engage, the float and/or the float switch may need to be replaced. If the sump pump engages but does not shut off when the water level drops to normal, the float and/or float switch needs to be replaced.

Tips & Warnings

• There are several different types of sump pumps, both submersible and non-submersible. Always follow the manufacturer’s guidelines for installation and maintenance.

• Always unplug the sump pump before putting your hands into the well to prevent electrical shock.

Resources

• SumpPumpTips