Model # BW4000

Internet #202042663

Store SKU #618637

Store SO SKU #1000897548

Basement Watchdog 1/2 HP Big Combination Unit with Special Backup Sump Pump System
0717301121982

Basement Watchdog

1/2 HP Big Combination Unit with Special Backup Sump Pump System

$397.00 /each

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Product Overview

The newly upgraded Basement Watchdog Special is now added the +, with new features that make it an even better solution for preventing basement flooding. This Big Combo+ is a pre-assembled energy efficient 1/2 HP Cast Iron Cast Aluminum primary pump combined with the newly upgraded Basement Watchdog Special+ Battery Backup Sump Pump System. With two pumps in your sump, you will know your basement is protected. Easy to install with little or no plumbing knowledge required. New features include: Weekly self-test of the pump, compatibility with maintenance-free AGM batteries, improved charging and monitoring and a remote terminal for easy connection to a security system, auto dialer or other similar device.

  • 1/2 HP energy efficient permanent split capacitor (PSC) primary pump can save money on your electric bills
  • Primary pump capacity 3,200 GPH at a 10 ft. lift and 4,400 GPH at 0 ft. lift
  • Backup system capacity 1,730 GPH at 10 ft. lift and 2,500 GPH at 0 ft. lift
  • Includes a battery backup system with unique monitoring that sounds an alarm, illuminates a warning light and describes what to do for easy maintenance
  • Runs weekly pump cycles to check for proper pump operation and to exercise the pump
  • 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 switches on both the primary and backup systems provide 4X the protection
  • 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 2 batteries in parallel for double the run time
  • Automatic 1.6 Amp battery charger
  • Compact design fits in pits with diameters as small as 12 in.
  • Detailed instructions with over 90 pictures walk you through the simple installation process
  • Free lifetime technical support
  • Includes controller, 1.6 Amp charger, 2 dual float switches, primary pump, backup pump, remote terminal and instruction manual (battery not included - sold separately)
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Customer Questions & Answers

14 Questions24 Answers

Customer Questions & Answers

1/2 HP Big Combination Unit with Special Backup Sump Pump System
1/2 HP Big Combination Unit with Special Backup Sump Pump System

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2 answers

Does the back up pump sit higher than the pimary pump?

This question is from 1/2 HP Big Combination Unit with Special Backup Sump Pump System
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July 12, 2016
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Asked by
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September 21, 2016
Answer: 
Yes, the backup pump and float sit higher than the main pump.
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Asked by
Lincolnshire IL
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Home Improvement Profile: Professional
July 13, 2016
Answer: 
Yes the backup pump sits higher than the primary pump. We are the manufacturer of The Basement Watchdog products and would love to help you directly if you may have any additional questions. You can contact us at 800.991.0466 ext 3 for tech support. We are available Mon- Fri 9-5 CST.
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2 answers

Is a weep hole needed?

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Ashley, OH
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May 2, 2016
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Asked by
Ashley, OH
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Home Improvement Profile: DIYer
May 5, 2016
Answer: 
The combination unit already has a weep hole pre-drilled so it is not part of the installation instructions. A backup unit only requires the installer to drill a weep hole.
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Asked by
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May 4, 2016
Answer: 
Yes it is. This prevents airlock. Please contact us directly if u have any other questions at 800.991.0466 ext 3 for tech support
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2 answers

Can this pump be used outside?

This question is from 1/2 HP Big Combination Unit with Special Backup Sump Pump System
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March 19, 2016
I noticed the controller can not get wet. How can this be used when the sump pump pit is outside?
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Asked by
Lincolnshire
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Home Improvement Profile: Professional
June 30, 2016
Answer: 
We do not recommend that certain components of this system be exposed to the Elements. The Controller Shouldn't be exposed to rain or extreme weather. As for the pump, we recommend they pump clear ground water since too much debris can cover the stainer therefore preventing the water to be pumped effectively. Please contact us directly so that we can give you advice on your specific set up at Read More
We do not recommend that certain components of this system be exposed to the Elements. The Controller Shouldn't be exposed to rain or extreme weather. As for the pump, we recommend they pump clear ground water since too much debris can cover the stainer therefore preventing the water to be pumped effectively. Please contact us directly so that we can give you advice on your specific set up at 800.991.0466 ext 3 for tech support Read Less
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March 20, 2016
Answer: 
Yes, the sump pump can be used outside.
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2 answers

Watchdog sump pump

This question is from 1/2 HP Big Combination Unit with Special Backup Sump Pump System
Asked by
Bensalem
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March 7, 2016
Can I use this sump pump combo with maintence free AGM batteries
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Asked by
Lincolnshire
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Home Improvement Profile: Professional
April 6, 2016
Answer: 
This is compatible with maintenance free batteries but we do recommend that you call us for battery specifications @ 800.991.0466 ext 3 for tech support before you purchase.
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March 8, 2016
Answer: 
The system is compatible with the maintenance-free AGM batteries.
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Customer Reviews

Rated 4.2 out of 5 by 69 reviewers.
Rated 1.0 out of 5.0 by Poor Main Pump Motor - Burned out after 1yr I bought this pump after an older one failed. I was able to install it easily and used a lawn mower battery for the backup. After about 2 months of it working great, the backup pump notification was going off constantly. The main pump had stopped running. I disassembled the plastic on the main pump motor and found some sand stuck in the main motor. I had to replace the float switch and it worked fine for another 2 months or so when the backup pump was running constantly again. Took it apart like last time and it worked again. Now, approximately 1 yr after I installed it, the main motor is done. The backup pump was still working fine, but one of the PVC elbows had a pinhole leak somehow. All in all, I would not buy this. I recommend calling a local plumber to get reccomendations, or a more reputable brand. After 1 yr, there is no warranty coverage, so I am out of luck and $400 for this piece... October 15, 2016
Rated 1.0 out of 5.0 by Not a good decision - look elsewhere. The product was easy to install. However, after only a year or use, I am on the third float for the main pump and now the main pump has failed. Very disappointed in this system. September 21, 2016
Rated 1.0 out of 5.0 by Do Not Buy Basement Watchdog This pump failed after only 4 years of use. I installed this pump 4 years ago and as the pictures illustrate it completely failed. The company (Glentronics, Inc) could not provide me with a reason why the pump deteriorated in such a short time. It's obvious they use substandard material and/or poor workmanship. December 1, 2015
Rated 1.0 out of 5.0 by Rusty junk 3 years and the housing on the pump has water blowing out of 3 rust holes the size of a nickel July 13, 2016
Rated 5.0 out of 5.0 by Great sump pump! Our old sump pump (20+ years) failed when we got a lot of rain from the remnants of Hurricane Isaac, partially flooding our basement. I did a lot of research trying to find a quality combination primary and battery backup sump pump at a decent price, and I definitely found it! Home Depot had a very competitive price and got it to me very quickly. This was my first sump pump install, so it took me some time, but it was very easy. The only drawback was that I had to buy the battery and acid separately and pour the acid into the battery myself - a little nerve-wracking, but no problems. I thoroughly tested the system, and both the primary and battery backup pumps work perfectly. December 3, 2012
Rated 1.0 out of 5.0 by Poor Quality - Aluminum Housing Rotted Away after 1 year forcing an emergency replacement I purchased the complete Watchdog system from Home Depot including the expensive backup battery. The total cost was about $550. After about 1 1/2 years I noticed the pump was cycling 2 to 3 times in a row. The next night it started making loud noises. I checked the sump and watched it pump. The entire well swirled like a torrent and splashed water everywhere. So I pulled out the pump and the walls of the aluminum housing had eroded. The pump housing had 3 holes the size of nickels to quarters. Water jets out of the holes causing the agitation and the pump starts groaning. So, at 9 pm that night I had to run to Home Depot and buy another pump to keep my basement from flooding. I paid $550 and didn't get 2 years from the Watchdog pump. My previous pump lasted over 12 years. Needless to say, I'm very disappointed and can't recommend this system to anyone. I uploaded a picture of the housing. April 8, 2015
Rated 5.0 out of 5.0 by Excellent product! I was a little worried that it would be complicated to install but really it was easy just like in the video. It took me 2 hours to do it only because I kept repeating the video to make sure I was doing it right. An expert would probably do it in 30 mins. Having everything is the key. Here is a list of what you need. The watch dog sump pump system Watch dog battery which was not included in the sump pump The battery acid which was not included I with the battery purchase 1 1/2 in rubber pipe connector In my case I needed to cut the PVC pipe which was not a big deal and connecting it to the main pipeline with the rubber connector. I just used the old PVC pipe from the old sump pump. Remember to date your sump pump so that you would know to change in the future. I would say between 8-10 years should be a good benchmark. Good luck! April 27, 2013
Rated 5.0 out of 5.0 by Had for over a Year and still going strong I purchase my home in 2014, and it had a dry basement with a sump pump in it. I live near a creek so the water well fills up all the time, even during the summer. Less than a year later the sump pump, started to act up, and the switch was sticking. I did research and purchased this pump, because of the battery backup system, the extra pump, and switches. Installation was not hard, cut the old pipe, slide in the new pump, used a rubber coupling and there you go it was installed. Had the pump installed in 10 minutes, plugged in and pumping. Then I installed the battery and the charger. Took a little to fill the battery wells and let the fluid settle, and top off, but again not a big deal. I have had this system installed for a year now and had a 6 hour power outage and the system worked like a champ. Alarm went off, battery backup worked, basement stayed dry. Power came back on, alarm light stayed on to tell me that the primary pump was off for a while, battery charged backed up, I cleared the code and everything is running great. I see the negative reviews, and I read all of them before buying this pump. That’s why I waited for a year of use to write this review. This is a good system, and it works. Yes a little pricey when you buy the battery and all, but better than not having piece of mind. All in I think I had 450.00 in the project, but again better than a wet basement, and ruined pool table. Before you install watch YouTube videos on how to install a sump pump, it will make you feel better about replacing one if you never have. This is a good system for the money I spent and would do it again in a heartbeat. It is worth the peace of mind. April 12, 2016
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