How To Replace A Sump Pump – 9 Easy Steps

Sump pumps are one method to prevent flooding in your basement. Just like any other device, a sump needs regular maintenance, and in an extreme situation, replacement of the same. Replacing a sump pump is not an entirely easy task, at the same time not impossible. If you want to replace yours on your own, this is a detailed explanation of how to replace a sump pump for a more effective and durable one.

How To Replace A Sump Pump - Steps

1. Unplug the Previous Pump

Before getting into the hard work, you should ensure you wear protective gear to keep off unattractive and unhealthy messy situations. Switch off all the electric connections flowing to the old pump. Uncover the basin carefully.

First of all, remove the check valve. Its job is to hinder water from back-flowing to the sump pump. Once disconnect the check valve, water is going to dump, and chances are it smells terrible.

2. Disconnect the Pump

Assess the PVC pipe linking the previous sump pump with the discharge line. Select a PVC length that will allow you mobility when installing the new pump. Use a hacksaw to cut the discharge line. Then pull the pump out of the pit.

3. Measure New Length of PVC pipe

Measure a fresh length of PVC linked to the previous pump. The recommendable measurement will be 1 ¼ or 1 ½ inch of the pipe. Trim a new length of pipe to connect the new sump pump. Trimming down a long pipe is allowed. If you trim it too short, you may need to dig up different adapters to link the pipes.

4. Connect the New Pipe

Link the pipe to the fresh sump pump. Find the discharge outlet on the new pump. Link the length of the PVC pipe you cut to the sump pump with a male adapter. Attach the male adapter to the PVC pipe using PVC glue and purple primer to guarantee the seal is watertight. Leave the glue to dry.

5. Lower the Sump Pump

For the safety of your machine, ensure the sump pump is not leaning against the basin walls. It should not be so near the backup sump pump or the float switch. The pump should also not be entangled in the wiring.

6. Ensure the Pump is Level

It is suitable if the pump is rocking about down at the basin. Ensure the pump is flushed against the floor using a level. If it is possible, put shims under the pump to keep it steady and level.

7. Assess the float switch

Ensure the float switch is positioned at a suitable height and is unobstructed. If the float switch is too low, the sump pump will be functioning and running continuously. If it is too high, the sump pump will not activate in time to maintain the rising water.

8. Connect the Discharge Line and Install Your Check Valve

Attach the new discharge line with the existing pipe. If your previous check valve is fully functional, you can go ahead and reinstall it. Install the valve low in the system, nearer to the pump than the ceiling. It ensures that once the pump shuts off, water in the pipe will not flow back to the sump pump. You can fuse the pieces using a union connector as an alternative to the check valve.

9. Test Your New Pump

Turn on electricity flowing to the sump pump and confirm to ensure the sump pump can handle incoming water. Brim a bucket with water and pour into the pit. The process simulates the amount of water a storm or heavy rains would bring in. The sump pump should be capable of displacing the water. The discharge hand, on the other hand, should be capable of carrying the water to the desired drainage area.

How Often Should You Replace Your Sump Pump

Sump pumps should be replaced every six to nine years on average. The lifespan of a sump pump is influenced by several factors such as;

  • The volume of water intended for displacement
  • Frequency of usage.
  • The runtime of the pump's cycle.

To ensure the sump pump lasts longer, you should ensure it does not overextend its operations and clean the machine regularly. If you are not sure of the age of the device, consider replacing it. Taking a sump pump older than ten years for repair will likely cost as much as it would for a replacement. You should also call a technician or a plumber to assess, clean, and service your sump pump.

Signs that You Have to Replace Your Sump Pump

The machine is making loud sounds

If your pump is making rattling, clanging, or any other unexpected noises, it is a sign that you should replace it. Quality pumps make minimal expected sounds. If the pump's motor is unusually loud, you should consider a replacement. Screeching and grinding sounds indicate a clogged impeller.

The machine is running non-stop

If your sump pump runs continuously whether it's in the midst of a storm or not, then there is an issue. You should consider replacing your sump pump if it is too small for the basin since it will be struggling to handle and displace the volume of water.

The machine is cycling erratically

If the pump cycles in periodic bursts, then there is a challenge and could be signs of a spoilt check valve.

The machine is clogging

If you fail to cover your pump basin, grit will ultimately accumulate over time. It causes a jam in the impeller fan blades. The discharge line will, therefore clog if the water has excess debris and sediment. A clogged discharge line will make the water flow back into the basement.

The machine is old and weary

Homeowners tend to overlook the replacement of their sump pumps if the devices have been functioning diligently over time. However, if your pump is approaching a decade, it is easily susceptible to failure, and a sign that you should replace it.


Owning a sump pump comes with various responsibilities. You should know how to install one, be able to operate it, and lastly be able to replace your sump pump. Proper maintenance of the pump will prevent unnecessary replacement. If you notice any slight malfunction, consider taking it out for repair or even replacement. 

About the Author Seth Gold

Seth Gold is a Blogger and Writer, Writing for the last 3 years on Home improvement, DIY, Gardening, and many more things where people get the latest free product information and buying guide.

Leave a Comment: