Backup Sump Pump Works
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Discover how Backup Sump Pump works so you can make a better selection of best sump pump suited for your pumping needs. Here are the highlights.
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Here are the details of how backup sump pumps work.
The following power sources that can be used for backup power.
Batteries are used for battery backup sump pumps.
Water Pressure is used for water powered sump pumps.
A portable generator can be used as power for backup sump pumps.
Automatic start standby generators can be used for primary submersible sump pumps.
Each of the power sources has its advantages and disadvantages.
See details at sump-pump-backup-power.Go to top of page.
This term applies to batteries used as the source of power.
The higher the charger strength the faster the battery will be recharged after usage.
Charger strength varies from.4 to 20.
See details at battery-back-up-sump-pump-battery-charger-amps.
Each backup system has a trigger that activates the non electrical power source to begin operation.
What are the different triggers?
For battery powered and water powered backup sump pumps, water raises the float and the pump is activated into operation.
An automatic start standby generator is activated when the transfer switch
senses a utility power interruption.
A portable generator becomes operational when a human starts it.
Each of these triggers has advantages and disadvantages. See details for backup-sump-pump-float-switch-triggers.
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Materials Used in Construction
Thermoplastic: Outer casing is made of a hard, durable plastic.
Cast Iron and Stainless Steel: The outer casing and bolts are made of metal.
What are the advantages and disadvantages of the different materials?
Thermoplastic weighs less and is cheaper.
Cast iron and stainless steel lasts a lifetime, weighs more and is constructed to handle heavy duty usage. This material is more expensive.
See details for battery-back-up-sump-pump-construction.
Operational CapacityBackup sump pumps do not have the same operational capacity (pumping capacity) that primary submersible sump pumps do.
See battery-backup-sump-pump-gallons-per-minute and water-powered-sump-pump-gallons-per-minute to compare pumping capacity,
|Dimensions of Backup Sump Pump and Pit
Each backup sump pump has unique measurements.
A sump pit with an 18"diameter basin or larger provides the greatest flexibility in being able to fit a primary and a backup sump pump into the pit.
A tether float requires a larger diameter-based pit than a vertical float
|Size of Discharge Port Diameter
The size is either 1 ¼ or 1 ½ inches in diameter.
Most backup pumps have an adapter to accommodate either size of PVC piping.
What are the advantages and disadvantages of the different sizes?
The capability to adapt to either a 1 ¼ or 1 ½ inch size PVC pipe is extremely beneficial.
A size of 1 ½ inches is required to handle heavy volumes of water.
Protection against Debris, Sludge, or Spherical Solids
Backup pumps use screens to protect against particles.
Those with the additional protection of float cages are built so the cage bottom concaves causing particles to run off.
Each of the battery backup sump pump systems have audible alarms that sound when the battery is activated when backup sump system is running. The alarm also sounds when the battery is discharged.
The Basement Watchdog Backup series also has an audible alarm when the battery fluid levels are low.Go to top of page.
Using the Basics to Understand Which Backup Sump Pump is Best for Your Situation.