Sump Pump

Sump Pump

Sump pump in Nairobi. Many people find themselves in a situation where they need a backup sump pump system…we always recommend one at Orchid Plumbing Company. If you live in an area of the country that has a lot of rain or high water tables, your basement is always at risk for flooding, the fact you have a sump pump indicates the potential presence of water surrounding your home or business. A flooded basement can cause thousands of shillings worth of damage and destroy priceless personal belongings too, installing a backup sump pump system is a wise investment.

Sump Pump

Here are a couple of backup sump pump options:
A water powered backup sump pump has a lot of benefits. This type does not require a separate 12 volt battery or a power source. The pump is usually installed near the ceiling of the basement near the floor joists. A separate float in the sump triggers the pump which is powered by the city water supply.  A water powered backup requires city water.  A well water source needs electricity to power the well pump, so if a power outage occurs the well pump would not operate leaving the basement unprotected. This is why water powered backup sump pumps are basically restricted to more urban areas or anywhere there is city water. These systems are very reliable, there are few moving parts. The pump uses venturi low pressure to draw water out of the sump and discharge it outside.

An electric powered backup sump pump is a more suitable option for rural locations. This type is either part of a combination system which utilizes two pumps (a 120 volt primary pump and a 12 volt back up pump), or it can be added to an existing sump pump to provide a backup system.

A well designed system will have separate float switches for redundancy. Depending on the battery installed, a backup pump can run intermittently for 2-4 hours.  It is also possible to install multiple batteries in parallel to increase the run time. This system is also automatic, meaning it requires no special action from the home owner. During heavy rainfall, the backup will also kick on automatically to empty the sump if the sump begins to overflow for any reason. There are also systems which can be installed alongside a pre-existing sump pump instead of purchasing a combination unit.  Our technicians will inspect your existing primary sump pump, then recommend an appropriate electric backup system to meet your needs.  Please keep in mind that the battery backups normally last only 2 to 4 hours until the battery is exhausted, at that point the backup sump pump will no longer operate.


Installing a 12 volt or water powered sump pump backup system is a crucial step in avoiding costly damages associated with a flooded basement.  Once you have a system in place it will require maintenance and regularly upkeep to ensure the system will work when a power failure occurs.

If you have questions, don’t hesitate to call Orchid Plumbing Company, we’d be happy to explain these options in more detail or dispatch one of our trained technicians to your home or business to walk you through your options in person.
For quality and affordable plumbing services in Nairobi and other counties in Kenya, Contact Orchid Plumbing Company to schedule a free plumbing inspection on any of your plumbing equipments. We will advise you in all aspects – from repairsto installation. Your plumbing work will stay durable if the right materials and workmanship is applied appropriately.


A sump pump is a device installed in a basement or a crawl space to prevent flooding by collecting and pumping out excess water that accumulates in a sump basin. These pumps are particularly common in areas where homes are prone to flooding or where the water table is high. Here are the key aspects of sump pumps:

Components of a Sump Pump System:

  1. Sump Basin:
    • A pit or container dug into the ground in the lowest part of the basement or crawl space. It collects water that may enter the space.
  2. Sump Pump:
    • The pump itself is installed inside the sump basin. It is activated by a float switch or pressure sensor to pump water out of the basin when it reaches a certain level.
  3. Check Valve:
    • Prevents water from flowing back into the sump basin after the pump shuts off, ensuring that the pump doesn’t have to work against its own discharge.
  4. Discharge Pipe:
    • Carries water from the sump pump to the outside of the house, typically directed away from the foundation.
  5. Float Switch or Pressure Sensor:
    • Activates the pump when the water level in the sump basin rises to a certain point.

Types of Sump Pumps:

  1. Submersible Sump Pumps:
    • Placed directly in the sump basin.
    • Operates underwater.
    • Typically quieter and more aesthetically pleasing.
  2. Pedestal Sump Pumps:
    • Mounted above the sump basin.
    • Motor is not submerged in water.
    • Easier to access for maintenance.

Functions of a Sump Pump:

  1. Preventing Basement Flooding:
    • The primary function is to pump out water that accumulates in the sump basin, preventing it from flooding the basement or crawl space.
  2. Groundwater Management:
    • Manages the water table around the foundation, particularly during heavy rains or periods of high groundwater.
  3. Protecting Foundation:
    • Helps prevent damage to the foundation and structural elements of the house by keeping the area dry.

Installation and Maintenance:

  1. Installation:
    • Sump pumps are typically installed in the lowest point of the basement or crawl space.
    • Proper installation includes ensuring a secure and stable placement for the sump basin, connecting the pump and discharge pipe, and installing a check valve.
  2. Regular Testing:
    • It’s important to test the sump pump regularly to ensure it activates when needed. This can involve pouring water into the sump basin and observing the pump’s operation.
  3. Cleaning and Maintenance:
    • Remove debris and sediment from the sump basin regularly to prevent clogs and ensure the pump functions effectively.
  4. Backup Power:
    • Consider installing a backup power source (such as a battery backup or generator) to ensure the pump continues to operate during power outages.


  • Sump pumps have a lifespan, and if they become old or malfunction, it’s crucial to replace them promptly to avoid potential flooding issues.
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