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Internet # 314159827

Model # CITS-50

Store SKU # 618637

Big Combo Connect 1/2 HP Primary and Battery Backup Sump Pump System with Smart Wi-Fi Capable Monitoring Controller

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  • Pre-assembled primary and backup for quick and easy installation
  • 24-hour-a-day monitoring of pump, power and battery conditions
  • 2 sets of dual float switches ensure pump turns on when needed
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Product Details

About This Product

The Basement Watchdog Big Combo is a pre-assembled, energy-efficient 1/2 HP primary sump pump combined with the number one selling Basement Watchdog Special connect Battery Backup Sump Pump System. It's the D.I.Y. solution for replacing your current sump pump with an efficient, cost-saving one that includes a battery backup system with 24 hour a day monitoring and a Wi-Fi capable controller (BW-Fi Module required for Wi-Fi connection, sold separately). With two sump pumps in your pit, continuous monitoring and remote notification allowing you to receive texts, emails and in App alerts you can feel safe that your basement is protected. The system is easy to install with little or no plumbing knowledge required. The 1/2 HP Cast Iron primary pump provides capacity up to 4,400 GPH at 0 ft. lift. The backup sump pump is battery-operated and pumps at 2,600 GPH at 0 ft. lift. The backup sump pump can run intermittently for days on a single battery charge from either the Basement Watchdog Maintenance-free AGM or Big Standby Battery. The Wi-Fi capable controller monitors the pump, power and battery conditions 24 hour a day. Plus, the controller exercises the pump weekly to make sure it stays healthy. A remote terminal provides easy connection to a security system, auto dialer or other dry contact device. The Basement Watchdog Big Combo is the ultimate peace of mind when you're away from home.


  • 1/2 HP energy efficient permanent split capacitor (PSC) primary pump can save money on your electric bills
  • Primary pump capacity 3,540 GPH at a 10 ft. lift and 4,400 GPH at 0 ft. lift
  • Backup system capacity 1,850 GPH at 10 ft. lift and 2,500 GPH at 0 ft. lift
  • Includes a Wi-Fi capable battery backup system that provides 24 hours a day monitoring of pump, power and battery conditions, backup controller will sound an alarm, illuminates a warning light and describe what to do for easy maintenance (BW-Fi Module required for Wi-Fi connection, sold separately)
  • USB port and remote terminal allows for communication with the watchdog Wi-Fi or home automation module, an auto dialer, home security system or other device, to alert you to problems or required maintenance giving you peace of mind while away from home
  • Runs weekly pump cycles to check for proper pump operation and to exercise the pump
  • 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: 1/2 HP cast iron primary pump, 12-Volt backup pump, a 24 hour a day self-monitoring controller with Basement Watchdog connect, 1.6 Amp battery charger, two dual float switches, battery box, battery cap adapter for fluid sensor, 2 pre-installed check valves, 1-1/2 in. rubber union, " Y" connector and detailed instruction manual (battery not included - sold separately)
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Product Information

Internet # 314159827

Model # CITS-50

Store SKU # 618637


Dimensions: H 18 in, W 11.75 in, D 8.75 in


Product Depth (in.)

8.75 in

Product Height (in.)

18 in

Product Width (in.)

11.75 in

Switch-Off Height (in.)


Switch-On Height (in.)



Amperage (A)

4.2 A

Battery Life (hours)

60 hr

Battery Type Required


Cord Length (ft.)


Discharge Flow @ 0 ft. (gallons/hour)


Discharge Flow @ 0 ft. (gallons/min)


Discharge Flow @ 10 ft. (gallons/hour)


Discharge Flow @ 10 ft. (gallons/min)


Discharge Flow @ 15 ft. (gallons/min)



Bottom/End Suction, Corrosion Resistant, Self-Priming, Submersible, Thermal Overload Protection

Housing Material


Impeller Material

Engineered Polymer (Primary), ABS (Backup)


Control Box, Hardware, Pump Hookup

Maximum Horsepower (hp)


Maximum Pressure (PSI)


Maximum Working Temperature (F)


Minimum Sump Basin Diameter

11 to 14

Minimum working temperature (F)


Number of Batteries Required


Outlet Diameter Connection (in.)

1-1/2 FPT

Pack Size


Power Type Required


Product Weight (lb.)

27 lb

Pump Switch Type

Dual Reed



Vertical Lift (ft.)




Warranty / Certifications

Certifications and Listings

CSA Listed, cULus Listed

Manufacturer Warranty

2 Year limited

Questions & Answers

Q:Is WiFi control set up all included or sold separately please with the watchdog all in one Pre assembled primary sump and back up pump 1/2 horse power
by|Apr 8, 2024
1 Answer
Answer This Question

A:  This system comes with the capability to use the Basement Watchdog CONNECT remote notification system. You will need the Basement Watchdog CONNECT Wi-Fi module to use it, which is a separate purchase. For more information, please contact our customer support team at 800-991-0466 option 3. We are available to take incoming calls from 8am - 6pm CT Monday through Friday.

by|Apr 9, 2024
    Q:If primary pump fails and it switches to backup, can I disable audible alarm through app? If I'm out of state but don't want people being annoyed by alarm, hoping I can disable it remotely. Thanks.
    by|Mar 23, 2024
    1 Answer
    Answer This Question

    A:  Currently, there is no way to remotely reset or silence the alarm through our Wi-Fi module. This feature may be added sometime in the future. For more information contact our service team at 800-991-0466 option 3. We are here to help from 8-6 Monday-Friday central time.

    by|Mar 24, 2024
      Q:Can this system be used in a basement sump pump that collects toilet wastewater? Assuming so but making sure its not just for groundwater.
      by|Mar 23, 2024
      1 Answer
      Answer This Question

      A:  This is not a sewage pump and is not designed to handle toilet or any kind of grey water. If you need a pump for that kind of applications we do have solutions for you. I would recommend contacting our service team at 800-991-0466 option 3 and we can assist you in choosing the correct pump for your situation. We're here to help from 8-6 Monday-Friday central time.

      by|Mar 28, 2024
        Q:Does a battery connection come with it
        by|Mar 18, 2024
        1 Answer
        Answer This Question

        A:  This system does come with a built in battery charger and the cables need to connect it to the battery. It does not come with the battery itself which is a separate purchase. For more information contact our service team at 800-991-0466 option 3.

        by|Mar 19, 2024
          Showing 1-4 of 62

          Customer Reviews

          4.2 out of 5

          • 4.2 out of 244 reviews
          • 75% recommend this product
          Filter by:
          Showing 1-10 of 244 reviews
          Peace of mind..
          Just completed an install with the wifi option. Very easy install and all working as per instructions. Feel a lot more protected and the email notifications are an added asset. I tried various scenarios ie: power outage. Switch activation and email notifications came through and on the app.
            • Recommended
            Ease of mind and maintainable
            I bought this system after finishing our basement. The wi-fi module add-on allows me to monitor my pump’s status anywhere from my phone. Recently, I got an alarm (4 years later) that my backup pump activated. I pulled the pump out from the pit and tested it. Turns out, the lower float had failed and needed to be replaced. $50 part in-stock at Home Depot. Had my system back up and running in an hour. In this age of “use and dispose” I can actually service the unit and extend its useful life.
              • Recommended
              2 found this review helpful
              Doesn't last long
              I have been buying these pumps for the past 13 years. I like that they are easy to install and have battery backup capabilities. What I severely dislike is that they usually last about 2 years. I just installed my 3rd pump in 6 years, but went with a different brand: Basement Sentry. Same combo battery backup setup. We'll see how long this different brand lasts.
              Response from WatchdogApr 28, 2022
              Sorry to hear you have been having a problem with the pumps not lasting. This system is covered by a 2 year warranty and even if its over that we can usually still help you out, especially if you have had previous issues. I would recommend calling our service team at 800-991-0466 option 3 so we can assist you with this. We are here to help from 9-5 Monday - Friday central time.
                Easy to install and quiet
                We bought this unit with the maintenance free battery and the wifi module. The installation instructions for all three were straightforward, as was the installation itself. All perform as they should, and the notifications from the wifi are nearly instantaneous. Note: 1) There is a ziptie connecting the main float to the pump body that needs to be removed before installing the pump. 2) You will need two separate outlets, because the main controller does not leave enough space to plug in the charger. 3) The wifi data cord is only 3' long.
                  • Recommended
                  1 found this review helpful
                  I am really happy with this Sump pump. Easy to...
                  I am really happy with this Sump pump. Easy to install and works really good. 100% recommend.
                  • Verified Purchase
                  1 found this review helpful
                  Needed some peace of mind...
                  I purchased this combination after we had a significant flood caused by the plunger on our old sump pump jamming against the sump pit wall. I have tried multiple sump pumps and what intrigued me about this pump was the compact multiple float system. The Watchdog system came in a few days and I installed it in about 30 minutes. I have pvc rigid pipes running from the pump up about 3 ft to a 90º elbow and out the sump line. The first night after installation we had a second flood, but at no fault of the Watchdog system. This pump is so powerful it blew the pvc pipe right out the sump line in the wall and pumped the water right back into my basement. I fixed this problem by securing the discharge line, as you can see in one of the attached pictures. My second challenge was figuring out how to reposition the floats to allow a certain amount of water to remain in the sump pit so it wouldn't run constantly. You can remove the floats and re-position them up the pipe and clamp them back in place. It took a bit of experimenting to get this right, but after a bit my the floats are positioned just right. Of note, this pump is quiet compared to every other sump pump we have had and as a result I am going to order the Wi-Fi module to receive alerts. It's a bit unnerving not to hear the pump come on every once in a while. My first impressions are very positive and I highly recommend.
                    • Recommended
                    Time Will Tell
                    I use this pump in a sump that is my basement perimeter drain and the pump cycles often when there is heavy rain it has been the end of several cast Iron pumps that use a flote system and arm to actuate the internal switch. When I saw that this system utilized a 2 switch system for backup I figured that would be a no brainer we will see. The other thing I would like to mention when I read the Box and online description for some reason I thought the system was going to send me Text messages or Alerts when there was an issue however after reading thru the instruction manual to set that up I found that in order to have those features you have to buy an additional item So it does not come with that functionality. You have to purchase additional items so that is a little misleading.
                      • Recommended
                      10 found this review helpful
                      It is currently working like a charm!
                      • Verified Purchase
                      Installation was somewhat easy as it was replacing an earlier version of the big combo
                      • Verified Purchase
                      This is the 2nd one that I’ve installed in 8 years and the Quality and Price are definitely worth it
                      • Verified Purchase
                      Showing 1-10 of 244 reviews