Basement Watchdog Special + Battery Backup Sump Pump System-BWSP - The Home Depot

Basement Watchdog

Model # BWSP

Internet # 100067307

Store SKU # 130828

Special + Battery Backup Sump Pump System

Basement Watchdog Special + Battery Backup Sump Pump System

This item has been discontinued.
The Home Depot no longer carries this specific product.

$246.00 / each


Model # BWSP

Internet # 100067307

Store SKU # 130828

Store SO SKU # 1000895764

The newly upgraded Basement Watchdog Special builds upon decades of reliability and adds even more features to protect your home from flooding. This battery-operated sump pump system is designed as an emergency backup to support the primary AC sump pump. It automatically begins pumping any time the existing sump pump fails. Easy to use controller sounds an alarm, illuminates a warning light, and describes what to do for maintenance. For added reliability, the float switch has, not one, but two floats. Should one float fail to operate, the second float automatically activates the pump. Basement Watchdog backup systems will pump during a power outage, main sump pump failure, primary float switch failure or if excess water is entering the sump pit. This new system now includes a weekly self-test of the pump, compatibility with maintenance-free AGM batteries, an improved charging and monitoring system and a remote terminal for easy connection to a security system, auto dialer or other similar device.

  • Pumps 1,730 GPH at 10 ft. lift to empty the sump pit in seconds and 2,500 GPH at 0 ft. of lift
  • Peace of mind when away from home, remote terminal allows the ability to communicate with an auto dialer, home security system or other device, to alert you to problems or required maintenance
  • Dual float switch provides 2X the protection
  • Runs weekly pump cycles to check for proper operation and to exercise the pump
  • Provides days of intermittent pumping power on a single battery charge
  • Fluid sensor monitors fluid level of the battery
  • Compatible with both wet cell and maintenance-free AGM batteries
  • Connect two batteries in parallel for double the run time
  • Automatic 1.6 Amp battery charger
  • Detailed instructions with over 90 pictures walk you through the installation process
  • Free lifetime technical support
  • Includes control unit with a dual float switch, a battery fluid level sensor, pump with a 1½” PVC pipe adapter, battery box and 1.6 Amp charger (battery not included - sold separately)

Info & Guides

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Assembled Depth (in.)  15.2 in  Assembled Height (in.)  5.5 in 
Assembled Width (in.)  9.2 in  Product Depth (in.) 
Amperage (amps)  Batteries Included  No 
Battery Life (hours)  7.5 h  Battery Type Required  30HDC140S - 7.5 Hour Basement Watchdog Deep Cycle Battery 
Housing Material  Thermoplastic  Number of Batteries Required 
Product Weight (lb.)  5 lb  Returnable  90-Day 
Voltage (volts)  12 
Warranty / Certifications
Certifications and Listings  1-UL Listed,SSPMA Certified  Manufacturer Warranty  2 Years 


Rated 3.5 out of 5 by 31 reviewers.
Rated 4 out of 5 by Solid Pump Good pump. Not too basic but not overly informative so as to confuse. Keeps my "not too handy" customers informed and off my back. October 2, 2014
Rated 5 out of 5 by Saved the day 4/28/2011 Bought in Sept 2010 and had it installed professionally for a total cost of about $600 including the installation cost of $200. Friends and family thought I was nutts spending that much! Well, it's been raining like crazy on and off for weeks and the AC sump pump has been cycling every 1 minute or so running 30 seconds to handle the water volume. Guess what? A power failure today, 4/28/2011, at around 2am during another heavy rain woke me up to an alarm. I freaked, thinking it was the floor water alarm I had installed indicating a sump overflow until I realized it was a power failure. I don't have sewers and I've have to bucket water out of the basement before to catch any overflow. Happily, it was the "Watch Dog" indicating it was functioning as designed. Long and short of it. The power failure lasted 3+ hours and the "Watch Dog" cycled every 40+ seconds for 25 seconds. I timed it, since I was still skeptical and was prepared to bucket again in the event of it's failure... Nope, worked like a champ! I figure that it pumped out well over 1800+ gallons of water at a 10ft lift that I'd would have had to bucket out myself from the basement or be standing in trying to get things off the basement floor. This one usage alone paid for itself in probable water damage, wear-and-tear on me, and peace of mind knowing it does the job it's advertised to do. If there are any battery issues, as others have suggested, I'll deal with them later BUT right now it's the best $600 I've spent to handle my basement sump pump concerns. April 28, 2011
Rated 4 out of 5 by Does the job it needs to do. We purchased our battery back up sump 2 yrs ago. We live 1 mile from the Ohio river. When the river comes up ground water is still being pumped forseveral days even after it goes down. During a current power interuption, that lasted for 3 days do to storms the back up sump kept up with the job. Rain water and ground water. Beats having to sleep in the floor and bail water to keep your home dry! March 20, 2011
Rated 1 out of 5 by Do NOT puchase a Basement Watchdog product We tend to get water in our basement when there is a lot of heavy rain. I've always been worried about the power going out during a bad storm, so I purchased and installed this unit about a year ago. In August the area I live in had a tremendous rainstorm that dumped 13" of rain overnight. Of course, that was the time that our primary pump failed. I shouldn't have had anything to worry about because of this backup pump, except for the fact that it also failed. It would not start at all and was giving us an alert that said there was corrosion on the battery. The only problem was that there wasn't any corrosion on the battery. IT REFUSED TO START THE FIRST TIME IT WAS NEEDED! Then, because it was past the 90 day warranty period Home Depot did not want to take it back, even though I explained that it was the first time I ever needed this thing to work since its installation. There went several hundred dollars out the window. I have since done a lot of research and installed a Zoeller primary and backup pump. There is a tremendous difference between the Zoeller quality and the basement watchdog quality. DO NOT WASTE YOUR TIME WITH ANY BASEMENT WATCHDOG PRODUCTS! WE NEARLY LOST $12,000 WORTH OF EQUIPMENT IN OUR BASEMENT BECAUSE BASEMENT WATCHDOG WOULDN'T WORK THE FIRST TIME WE EVER NEEDED IT TO! For just a few extra dollars you can have true peace of mind with Zoeller. FYI - neither I, nor anyone I know is affiliated with Zoeller. Their products are just much better. October 11, 2014
Rated 1 out of 5 by Failed first time it was needed I have a Basement Watchdog Special BWSP. It’s been installed about 18 months. We had bad rain storms today and my main sump could not keep up with the amount of water in the pit. This wonderful system failed to start. The first it was ever needed! The switch worked and the pump light illuminated but the pump itself did not start. I have checked all the connection, the pump is connected on the back of the control unit. The pump was fully tested at the time of installation and at that time, activating the float switch started the pump. As a result my basement flooded. Thanks for a wonderful system...NOT June 19, 2009
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