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The Basement Watchdog bw1033 - 1/3 hp cast iron submersible sump pump w/ vertical float switch is available for purchase today.

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Basement Watchdog BW1033 - 1/3 HP Cast Iron Submersible Sump Pump w/ Vertical Float Switch

Basement Watchdog Sump Pumps and AccessoriesModel: BW1033
(Based on expert analysis, manufacturer ratings and customer reviews)
3.9 out of 53.9 out of 53.9 out of 53.9 out of 53.9 out of 5
7 Reviews
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  • Features
  • Specs
  • 10
  • 7
  • Articles
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  • Accessories
Primary Sumps Pumps
Horse Power
Switch Type
Vertical Float Switch
Submersible Sump Pump w/ Dual Float Switch
Ideal for average water removal

Energy Efficient, Thermally Protected Split Capacitor Motor
Use only 3.5 Amps (compared to 10+ amps on other pumps)
Pump will pay for itself in energy savings

Dual Float Switches w/ Protective Cage
Protective cage prevents debris/wires from interfering w/ float
Provides added redundancy, Won't get hung up

Industrial Strength Design
Dual seals to protect the motor
Upper & lower ball bearings
Excellent E-rated insulation

Cast Iron/Cast Aluminum Construction
Stainless steel shaft and fasteners will not corrode

Water Cooled Design
No oil to leak, pump is environmentally friendly

Need Help? Ask Our Sump Pump Experts.
Min Sump Basin Size
10 Inch
Running Amps
Thermal Protection
Power Cord Length
10 Feet
Oil Free Motor
Starting Amps
Housing Material
Cast Iron
Handles Solids
Float Type
Vertical Float
GPH @ 0 feet
GPH @ 10 feet
Discharge Port Size
1-1/2 Inch
Built-in check Valve
Float On
Float Off
Timer Based
Manual Override
Made in USA
13 Pounds
Product Width
6 Inches
Product Height
12 Inches
Consumer Warranty
3 Years
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*Ask Jim about the Basement Watchdog BW1033. Sorry, no repair questions:




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  10 Questions
Q: Jim Help my sump pit/sump basin is 7" in diam
I think the closest unit is the bw1033
although the specks say 10" sump basin size the unit is size is 6" Can I use the bw1033 in a 7" diam pit ?

by Ernie from Colorado on May 13, 2015

A: Unfortunately, this is the smallest diameter pump that we offer and in this scenario you would need to take your own risk. A 7" diameter basin would make this an extremely tight fit and I would not recommend it.
by Jim, Product Expert
Q: What does min. sump basin size mean?
by John D from Massachusetts on February 02, 2013

A: The minimum sump basin size relates to the minimum size of your sump basin or pit, that a specific pump will safely operate in. Any pump needs a certain amount of space due to "on/off" levels, cooling factors and cycling that the pump is designed for. Most pumps will require a standard size basin of 18" wide by 24" deep but some will also operate in smaller basins. You want to pay very close attention to these requirements as they will insure a longer pump life.
by Jim, Product Expert
Q: I would like to know how many watts a 1/3 or 1/2 hp sump pump has, because i was think of buying a portable generator in case the power goes off.
by Tom B. from New York on September 03, 2012

A: That really depends on the pump. Some are more efficient than others. For example, the 1/3HP Basement Watchdog model BW1033 has a running amp rating of 3.5 and a starting amp rating of 7. When you figure the watts by the formula of amps times volts equals watts ( A X V = W), you get 420 running watts and 840 starting watts. But when you look at the Zoeller 1/3HP model M53, that pump has a running amp rating of 9.6 and a starting amp rating of 29.6 or 1152 running watts and 3552 starting watts.
by Jim, Product Expert
Q: bw1033 can i use 2 pumps in the same pit, and set one with the float higher for use as a secondary
by Russell Chasin from New York on August 13, 2012

A: With a 6 inch diameter, these pumps are the smallest footprint pumps that we offer. And as long as you have enough room, and you mention that you have 16 inches to work with, you should be fine. The 2-pump system is quite common for situations of sporadic heavy downpours and possible flooding and is a very good solution as opposed to over sizing a single pump and most likely reducing the life of that pump.
by Jim, Product Expert
Q: I don't know which model sump pump to purchase or which model is appropriate for my home. How do I go about doing that?
by Harry from Illinois on May 20, 2012

A: If you are replacing a sump pump and the pump has performed well for you in the past, it's best to replace it with a pump that matches the horsepower and/or gallons per hour rating as close as possible. If that information is unknown and the original pump's brand and model number is still visible on the pump, you can always look it up on the internet or call us for more help. If no information is available, an average sized home in a typical water table can usually use a 1/3HP - 1/2HP sump pump. Submersible sump pumps are more popular and will usually run quieter and last longer than pedestal sump pumps. You can also click HERE for more information on how to pick the perfect sump pump.
If you have additional questions, please let me know or give me a call.
by Jim, Product Expert
Q: I was concerned that as often as our pump works I should have a replacement pump in case the primary fails and an alarm if the power goes out. i was thinking of a pump that is more quiet and then using our old one as a backup. i'm not sure if I like the idea of a battery backup. any suggestions?
by Ells Snyder from Maryland on December 10, 2011

A: A backup is never a bad idea as long as you're home when and if "the" event takes place. A BATTERY BACKUP System would be good insurance and would help ease your fears of having some pumping capability should you be away from home when a severe storm hits. Most systems will give you approximately 7 hours of continuous runtime or 24 - 48 hours of non-continuous runtime. The other consideration would be a STANDBY GENERATOR. This option would also give you peace of mind for your pump, refrigerator, heating or cooling, garage door and security system.
by Jim, Product Expert
Q: What is the height of water when the pump cuts in and what is the height that it draws down to and cuts off.

I would be using this to pump water from a 'wet bar' up about 8 ft. into my inside water drain pipes.

by Herb Redmond from Maryland on April 26, 2011

A: The dual float switch on this system actually mounts to the discharge pipe so you can set it at any height you desire. Keep in mind that the discharge connects to the top of this pump. The height of the pump is 12 inches so that would be the minimum that you could get this pump to turn on at.
Per the instructions:
The dual float switch contains two large floating rings enclosed within a protective cage. Water will lift the bottom float by a 1⁄4 inch, which will activate the pump. If
for any reason the lower float does not activate the pump, the water will rise and activate the second switch. As the pump evacuates the water from the pit the floats will drop. The pump will run for an additional 10 seconds to extend the cycle after the lower float drops.
Note: When mounting the float switch, position the bottom of the cage at the height you want the pump to activate.
by Jim, Product Expert
Q: My Sump Pump is constently running. It does not shut off. I was trying to find the floater for the sump pump, but I could not find it. It look like the Sump Pump with the vertical floater switch, but I do not see the Vertical Floater Swithch. What can I do to get the sump pump working like it should :(
by Tracy from Maryland on March 17, 2011

A: If your pump is a 120V sump pump, I would suggest the StormPro Model SP20A201 vertical float switch or the Basement Watchdog Dual Float Switch and Controller, model BWC1, as long as your pump is not drawing more than 15 amps.
by Jim, Product Expert
Q: What is the max head pressure for the model BW1033?
by Sherry from Wisconsin on January 11, 2011

A: Hello Sherry,
The BW1033 is a new model even though Basement Watchdog has had that part number for a while. They have not conducted testing on TDH or max head. You are welcome to contact Jim Curren at Glentronics at 800-991-0466 x20 and he would be more than happy to help you out in answering your question.
by Jim, Product Expert
Q: Would this pump be suitable for a 12' x 12' basement?
by Cody Dix from Ohio on January 10, 2011

A: The interior dimensions of a basement aren't a major factor in sizing a sump pump correctly.

Monitoring your current pump during normal operation and during a storm can give you a better idea of what size pump you would need.
by Jim, Product Expert
Basement Watchdog BW1033 Reviews & Ratings
Overall Rating
3.9 out of 53.9 out of 53.9 out of 53.9 out of 53.9 out of 5
Easy To Use (3)
Price (2)
Fast (2)
Quiet (2)
Features (1)
Unreliable (2)
Low Quality (1)
80% of respondents would recommend this product to a friend
7 Reviews  Sort by 
Richard K.
Saint Clair, MI
Purchased from Sump Pumps Direct
Purchased 1/7/16
4 out of 54 out of 54 out of 54 out of 54 out of 5
Inexpensive & Quiet
This is my second "Watchdog". It is quiet and inexpensive. However, the last one only lasted 4 years before it rusted out. The green body in the picture rusted through and it became ineffective even though the pump motor still ran fine. Also, I wish the float had a longer range so that it wouldn't cycle quite so often.
Richard Recommends This Basement Watchdog Product
Manufacturer Response
Brand Rep
We thank you for taking the time to review our products. We appreciate your feedback. We do recommend that you contact us directly so that we can walk you through figuring out what is going on that caused this to your pump. You can contact us M-F 9-5 CST AT 800.991.0466 Ext 3 for tech support.
Richard's Experience With Sump Pumps Direct
Web Site


"Shipping was amazing. I had it at my door in about 36 hours with standard free shipping."
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Kenneth L.
Bloomingdale, IL
2 out of 52 out of 52 out of 52 out of 52 out of 5
Poor Quality Pump
I bought this pump at ACE Hardware yesterday. Hooked it up with a temporary set-up. It worked fine at first, then locked up. I removed the bottom and found a small fragment of loose plastic. But I also noticed that the impeller was not straight. I reassembled it, and it ran, but made a scraping sound. Then it locked up again.

Also, this pump claims to be cast iron and aluminum. But pump volute (casing) and impeller are plastic.

I returned it and got my money back.
Pros: Easy To Use, Quiet, Fast
Cons: Low Quality, Unreliable
Kenneth Does Not Recommend This Product
Manufacturer Response
Brand Rep
We apologize for any inconvenience that you had with this pump. We would also like to clarify that it is not at all common that this would happen with one of our pumps, since we manufacture them with a removable strainer at the bottom of the pump to prevent debris from damaging the impellor. We do stand behind our product 100% and if you give us a call we will be able to assist you with this situation. Also, the housing of the pump is cast aluminum and the impellor is advertised as being Engineered Polymer. If you need further assistance please contact us directly at 800-991-0466 Ext 3. for technical support
Was this review helpful?
Purchased from Sump Pumps Direct
Purchased 9/8/11
3 out of 53 out of 53 out of 53 out of 53 out of 5
You Have To Watch The Watchdog
Bought one of these a few years back. It worked for one storm then quit during the next. Called Watchdog and they sent me a replacement free of charge. The second one acted the same way. Took the bottom cover off then the housing to get to the impeller, which had locked up due to a small piece of debris. Because this pump is so efficient (3.5 a) it has very tight clearances and small particles can cause a locked rotor condition. Will have to put a screen over the cover to improve... more
Pros: Easy To Use, Quiet, Price, Fast
Cons: Unreliable
Jim Recommends This Basement Watchdog Product
Manufacturer Response
Brand Rep
We appreciate your feedback and are very sorry that this happened with your BW1033. The design does include a strainer at the bottom of the pump, and usually that is enough to protect the impellor. It seems your case is a special one. We would like to thank you for calling us directly and allowing us to make things right. We are always willing and ready to assist our customers as quickly as possible. If you have further questions or need further assistance, please contact us at 800.991.0466 ext. 3 for technical support.
Was this review helpful?
Long Island City, NY
5 out of 55 out of 55 out of 55 out of 55 out of 5
Flooded Basement + 24/7 Monitor
I picked this up to help me finish getting rid of the water in a flooded basement, as well as to use moving forward as an 'always on' pump.

The small footprint is ideal for the space, and the vertical float works flawlessly. After a week or so of use, I couldn't ask for anything more.
C Recommends This Basement Watchdog Product
Manufacturer Response
Brand Rep
Great! We are happy that this pump is working out perfectly for you. We appreciate your feed back
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Fredrick S.
Waukegan, IL
Purchased from Sump Pumps Direct
Purchased 6/11/14
4 out of 54 out of 54 out of 54 out of 54 out of 5
Three Is A Crowd!!! 9,900 Gph
It all started last year when I began to rebuild my sump pit set up. After 15 years of two 1/2 hp Campbell Haulfield pit boss pumps through 1 1/4" pipe at 10 feet of rise and an additional 1/3 hp pump as a battery backup and still 4 floods in the past 7 years it was time. Where do I start....

The rebuild began with some fully submerged beef in the pit and that is 3/4 hp submerged Wayne pump at 3500 gph and then I added a 1/2 hp Wayne pedestal at 3800 gph yes you read that correctly that... more
Pros: Durable, Features, Easy To Use, Price
Fredrick Recommends This Basement Watchdog Product
Manufacturer Response
Brand Rep
Thank you for the review. We know that you will be happy with this pump.
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Oswego, NY
5 out of 55 out of 55 out of 55 out of 55 out of 5
Best Pump Ever
Easy installation and so quiet. This pump empties the sump pit almost instantly. Will never own a pedestal pump again. Delivery of the product was quick and priced right.
Manufacturer Response
Brand Rep
We are happy that your are pleased with our pumps. Thank you for your review.
Was this review helpful?
College Park, MD
4 out of 54 out of 54 out of 54 out of 54 out of 5
Quiet Lil' Sucker
So after Irene and before remains of Lee passed by I decided to upgrade my sump system and add a battery back-up as well. I'll review that later if it ever gets used, hopefully not. The main reason was because the previous flotec locked up (during Irene) after only 1.5 years. Fortunately no flooding occurred.

I chose this model because it was small and drew water from the bottom. Unlike other models that sit on a sorta platform and still leave an inch or two of water in the pit. ... more
Manufacturer Response
Brand Rep
Thank you for your review. We appreciate you choosing the Basement Watchdog.
Was this review helpful?
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