Wayne ESP25N
Wayne ESP25N
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Wayne - ESP25 - Battery Backup Sump Pump (1500 GPH @ 10')



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Wayne - ESP25 - Battery Backup Sump Pump (1500 GPH @ 10')
Wayne - ESP25 - Battery Backup Sump Pump (1500 GPH @ 10')
Model: ESP25N
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Recommended Accessories

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Expert Recommended Accessories Selected by Jim, our Expert
Required Accessories 9
These accessories are required to properly setup/install this product.
Optional Accessories 10





2880 Gallons

Switch Type


  • Wayne ESP25 Battery Backup Sump Pump
  • Assembled in the US with foreign and domestic parts
  • Upgraded epoxy steel body and cast-iron base. (ESP25) w/ 6' Cord 12V Backup Sump Pump
  • Helps extend pump life in harsh sump basin conditions
  • Pumps 2880 gallons-per-hour @ 0' lift (or 1500 GPH @ 10')
  • Adjustable Reed Float Switch
  • Easily mounts at high water level in your sump basin
  • Automatically starts when your existing sump pump fails
  • Audible Alarm For Local Notification
  • Alarms sounds when high water even occurs and pump is running
  • 12V Battery Charger w/ LED Indicator Light
  • Smart charging technology for maximum battery efficiency
  • Provides real-time battery charge status
  • Includes Thermoplastic Battery Box
  • Corrosion-resistant design provides safer operation
  • Compatible with Residential Sump Applications
  • Requires minimal pluming modifications for an easier installation
  • Requires (1) 12V Deep Cycle Battery (SOLD SEPARATELY)
  • Recommended for use with the WAYNE WSB1275, 75 AMP hr maintenance free battery
  • 2-Year Limited Warranty
  • For Indoor Use Only
California residents see
Warning: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP) which is known to the State of California to cause Cancer.
For more information go to: www.p65Warnings.ca.gov


specs product image PID-1171
General Information
Product Category
Sump Pump
Base Material
Cast Iron
Min Sump Basin Size
14 Inch
12 Volt DC
Battery Included
Power Cord Length
8 Feet
Housing Material
Impeller Material
Handles Solids
Float Type
Vertical Float
GPH @ 0 feet
GPH @ 5 feet
GPH @ 10 feet
GPH @ 15 feet
Discharge Port Size
1-1/2 Inch
Check Valve Included
Manual Override
Max Head
20 Feet
Product Category
Sump Pump
20 Pounds
Consumer Warranty
2 Years
Product Length
17 Inches
Product Width
10 Inches
Product Height
14 Inches
Additional Model Numbers



Wayne ESP25N Reviews & Ratings

Product Q&A

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Product Questions Answered by Jim, the Sump Pump Expert
Looking down the road, if and when the pump fails / wears out, would I be able to replace it or do I need to replace the entire unit? Hence, would I be able to use the power inverter or controller with other pumps? Thanks.
from Illinois 
January 22, 2014
Jim, I've seen some reviews on Wayne sump pumps that indicate they are timer operated instead of float switch operated. Is this true and what are the advantages and disadvantages of either system?
from Delaware 
July 15, 2012
Hi Jim, I have an off-grid solar panel system that constantly charges a 12V deep cycle battery bank. The battery bank is capable of storing over 200 amp hours, well above the Wayne 75 amp battery. My question is: if I were to connect this backup pump to the current solar battery bank and leave it unplugged from the wall (solar is capable of maintaining the load and keeping the batteries charged), would the controller run properly without ever being plugged into the wall? I don't want a constant alarm eating my batteries and the pump itself would be used only in emergencies when typical grid power is out. Is there a way to shut off the need for grid power? I prefer to keep the solar array seperate from the grid because it also supplies electricity for our sensitive elecronics, and it's more reliable in the event that I'm not home that the solar panels can theoretically power the pump endlessly. What are your thoughts? Thanks, Joe
Joe J. 
from Michigan 
March 14, 2012
for the esp25, how large Ah battery is needed to run pump for 1 hour continuous with 10 ft of head?
from Wisconsin 
April 17, 2011
Do I need to leave my battery backup system charging at all times?
Patrick Mcclone 
from Wisconsin 
January 03, 2011
how many hours backup does this provide in case the power goes out. we are looking for a 24 hour back up pump.
from New Jersey 
January 03, 2011

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