On a sinking ship in bygone eras, sailors would have to bail out water using buckets. In a modern home, water goes to the lowest point and builds up.
Sump pumps serve the same purpose as buckets on a sinking ship. Through a motor, pipes, and other components, the sump pump transfers water out of your home. Within this vital process, a sump pump check valve opens and closes to prevent backflow.
Let’s delve into how this critical component works and the red flags that you may need to call in the professionals to replace it.
Quick Takeaways
- Sump pump check valves are one-way valves that are placed on the discharge pipe.
- When the pump turns off, the valve stops water from flowing backward and refilling the sump pit.
- With check valves, you can help your sump pump last longer and prevent short cycling.
- A faulty or missing valve can cause non-stop pump operation, eventually resulting in premature failure.
- If there is a malfunction with your check valve, it’s essential to arrange for a professional diagnosis and replacement.
What Is a Sump Pump Check Valve?
At its heart, a sump pump check valve is a one-way valve that keeps water from flowing backward. It sits on the pump’s discharge line. When the pump is operating, it opens up to allow water to flow out. As soon as the pump is switched off, the valve’s flapper closes to prevent backflow.
Where the Check Valve Is Located
The check valve is typically located above the pump on the discharge pipe. If it is too high in the sump pit, short cycling will occur as water flows back into the pump.
However, if it is installed too low, it can be challenging to service. Because of this, we generally recommend having it professionally installed.
How a Sump Pump Check Valve Works
A sump pump is placed at the lowest part of a basement or crawl space because this is the location where water and moisture collect if your home begins to flood. Once the water is at a certain point, it triggers the pump to switch on.
The sump pump sends this water through a discharge pipe, which has a check valve installed on it. The valve opens when water is being pushed out of your home. When the pump turns off, it closes again. Gravity is responsible for allowing the water to drain and closing the flapper.
Why a Sump Pump Check Valve Is Important
Sump pump check valves are important for preventing backflow, pump cycling, and basement flooding. They can increase the lifespan of the sump pump’s motor and boost its efficiency.
What Happens If a Check Valve Is Missing or Fails?
When the check valve isn’t working properly, your system will turn on repeatedly and experience increased wear. Water will drain back into the pit. Unfortunately, all of these added operations increase the likelihood of pump burnout and unexpected breakdowns.
Signs of a Bad or Failing Sump Pump Check Valve
A troublesome valve can cause a few different signs and symptoms.
- Short cycling or non-stop cycling
- Water that flows back into the pit
- Loud thumping or banging noises
- Extended operations
Types of Sump Pump Check Valves
Standard check valves are the most basic kind of sump pump check valve. They close as soon as the pump stops operating.
Spring-loaded valves use a spring to shut the valve quickly. In comparison, flap-style valves have a hinged flap. While flap-style valves are better for flow, they can produce more noise than spring-loaded valves.
If your valve is in a finished basement or close to a bedroom, you may want a quiet or silent check valve. These ones are designed to operate with minimal noise, so they are less disruptive.
How Long a Sump Pump Check Valve Typically Lasts
While the lifespan can vary, these valves tend to last around 5 to 10 years. Other than age, debris, water quality, and usage patterns can impact the valve’s longevity.
When To Replace or Repair a Sump Pump Check Valve
If you notice frequent cycling, audible noises, or water backflow, you should call to schedule an appointment. Additionally, you should plan on replacing the sump pump check valve if you’re replacing your sump pump.
FAQs: Sump Pump Check Valves
Check out some of the most frequently asked questions about sump pump check valves.
Do all sump pumps require a check valve?
Yes, these valves are essential for keeping water from flowing back into your home.
Is a sump pump capable of working without a check valve?
The sump pump can still function, but the constant backflow can cause short cycling, overheating, and premature wear.
Why does it feel as if my sump pump is turning on every few minutes?
If your sump pump is turning on constantly, it may be due to a malfunctioning check valve. It may also happen because of a blocked discharge pipe or a faulty float switch.
Where is the best place for a sump pump check valve to be installed inside of my home?
It should be placed vertically on the discharge pipe. The best spot is about 6 to 12 inches above the pump.
Is a loud sump pump check valve a problem?
This is likely due to an effect known as water hammer. The valve is slamming shut, which can eventually cause premature wear and potential valve failure. To determine what is wrong with it, it’s a good idea to schedule a professional inspection.
Schedule Professional Sump Pump Service in Fort Myers, FL
A clanking noise rises ominously from your basement. As you try to sleep, it sounds like a machine gun from a World War II film is playing inside of your home.
The good news is that your house isn’t haunted. A malfunctioning sump pump check valve can cause clanging and banging noises, which are early signs that the component is starting to malfunction.
By reaching out to our punctual plumbers, you can replace failed check valves, diagnose backflow problems, and prevent premature pump failure. For a full inspection of your sump pump system in Fort Myers and the surrounding areas, give us a call today.