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Sump Pump, Prostormer 3500 GPH 1HP Submersible Clean/Dirty Water Pump with Build-in Float Switch for Pool, Pond, Garden, Flooded Cellar and Irrigation

  • Based on 1,472 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Sep 22
Order within 9 hours and 45 minutes
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Style: 1HP


Features

  • Kindly Tip 1: When you start using the pump, it must be fully submerged in water at a slight angle and hold it underwater for 20 to 30 seconds to ensure all trapped air is thoroughly expelled before operation
  • Kindly Tip 2: The device is not suitable for continuous operation (e.g.as recirculation pump for ponds).This type of use will substantially shorten the pump's life expectancy
  • 1HP High Power: Prostormer Sump Pump uses 1HP power, which is more efficient than ordinary 3/4HP sump pump; Max 3500GPH rating tackles any draining job at a fraction of the time
  • Multi Outlet Sizes: 3 different diameters outlets (1 inch ,1-1/4 inch, 1-1/2 inch) to adapte for different size hoses as needed according to the flow rate. The bigger the flow is, the wider the outlet should be
  • Manual Mode: Set the switch to the MANUAL positon the pump will now not automatically switch off but carry out pumping, even if theremaining water level is reached and the pump runs dry. You should cut off the power immediately to prevent the coil from getting burned
  • Automated Mode: Set the switch to the AUTO position. Once you have plugged the device into the socket, the pump will switch on automatically when the water exceeds the start-level and switch off when the stop-level hasbeen obtained.this means that the pump can be left on at all times and will keep the waterin a cellar or boat, for example, at the required level.bear in mind that this pump is notdesigned to be used continuously, it must be switched off at regular intervals
  • Sealing Structure & Durable Construction: The sump pump features a durable sealing structure and the durable thermoplastic body keeps the pump from corrosion. The higher base plate which assures the prevention of debris collection in the sump pit.

Brand: Prostormer


Color: Orange


Material: Thermoplastic


Style: 1HP


Product Dimensions: 8.75"L x 7.75"W x 13.5"H


Power Source: ac


Item Weight: 10 Pounds


Maximum Flow Rate: 58.33 Gallons Per Minute


Maximum Lifting Height: 26 Feet


Voltage: 120 Volts (AC)


Brand: ‎Prostormer


Color: ‎Orange


Material: ‎Thermoplastic


Style: ‎1HP


Product Dimensions: ‎8.75"L x 7.75"W x 13.5"H


Power Source: ‎ac


Item Weight: ‎10 Pounds


Maximum Flow Rate: ‎58.33 Gallons Per Minute


Maximum Lifting Height: ‎26 Feet


Voltage: ‎120 Volts (AC)


Manufacturer: ‎Prostormer


Specific Uses For Product: ‎Build-in Float Switch


Part Number: ‎PSWP03D


Item Weight: ‎10 pounds


Item model number: ‎PSWP03D


Finish: ‎Submersible Clean/Dirty Water Pump


Pattern: ‎Water Pump


Shape: ‎1HP Sump Pump


Horsepower: ‎1 Horsepower


Cord Length: ‎16 Feet


Special Features: ‎Float Switch


Included Components: ‎Diameter outlet adapter


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: September 29, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Float panel modification
Style: 1HP
Worked fine through hurricane Milton. Here it is about 9 months later had a big rain and it did not automatically start up. I tilted it and it started right up. The float was not rising to the top to activate the switch. There was an air pocket in the front float area so I removed the float area cover and drilled 4 small holes in it to release any air that may get trapped in the chamber around the float. Started filling the pit with water and the pump came on automatically. Tested 4 times, looks like the issue has been resolved. The cover that is around the float was set in there so tightly that no air could escape. Just in time for the next hurricane season. ... show more
Reviewed in the United States on June 10, 2025 by ElectronicsNut

  • Great Pump
Style: 1HP
The media could not be loaded. UPDATE! 7/16/2025 After almost a year now we guesstamated over 800 hours and it still pumps water. This pump in on a concrete block 2' 19" deep inside a 55 gallon drum with the top cut off and the bottom side up with a hinged door. It has pumped sand and leaves with more water than I can imagine from storms, hurricanes and a broken pipe for a week. I am buying another one just like it to be sure we don't flood out. After all that it has done I can not trust it to keep going. It has paid for itself more times than I can count. Used it for an automatic lift station for my new french drain. Out of the box it pumped far more water than expected but the auto would not function without shaking the pump. This was during a 4 inch downpour. Took it out of the hole, tinkered with the float and it began the auto great as seen in the video. Checked it today and the hole was filled, pump completely submerged. Shook it and bang! It began working perfectly again. The problem is, I am not going out in a Florida thunderstorm to kick-start it every time. I'll keep it for something later, but it's getting replaced with a REAL, reliable automatic sump pump. ... show more
Reviewed in the United States on August 23, 2024 by Amazonianallday

  • It Pumps.... That is about where it ends.
Style: 1HP
I have a sump pit I installed. Now "Gravity" will allow this pit to let water flow out but only after it fills to almost full. So in my case, it's kind of a fail over. Only if we get heavy rain do I even worry about it. That said, i wanted to put a pump in to help keep it lower because the GROUND around (and even under) my house/basement is saturated and I wanted to try and help it out quicker (relatively speaking). Additionally, I want to be able to avoid the overflow of my sump (natural drainage) on the heavier flow. THus I needed a Sump that would come on/off automatically. This one looked like a good fit. I purchased it, got the appropriate adapters needed to hook up my hose (for now) and let it go. Worked like a charm. After about a week, of going down and checking on it periodically, I started to notice that my sump basin was near full (at the level where it would drain naturally out the top pipe). The pump SHOULD have been running and SHOULD have come on when the basin is only about a third of the way full. Just shaking the hose attached to the sump, which jarred the sump pump, was enough to cause it to kick on. Then it would work fine (on and off) for a short period. (It's easy for my to check because I get about .5 gallons of constant flow into my sump basin on a regular basis). However it eventually would no longer come on. I left for almost a week to go hunting, came home after a few good rain storms, went to my basement and the floor was all wet. We had gotten enough rain to overwhelm my sump basin's natural draining (without the pump) which is why I want the sump pump in the first place. I tried to like this pump. I like it's power, I like how well it pumps out. I like how quiet it is, but in the end, I need a reliable pump that will turn on and off reliably, and this pump is NOT it. If it cannot do the main thing for which I needed it for, it's no good to me. I submitted my return/refund request and will look for a different model. ... show more
Reviewed in the United States on November 15, 2021 by Paul G.

  • Buy a check-valve. Otherwise, great!
Style: 1HP
Initial Observations: works great, needs a check-valve. Easily fits in a 11" (28 cm) diameter sump. Pumps quickly, turns on/off as expected. Would be 5-stars if it came with a check-valve or at a minimum easily accepted a check-valve. I had to use a "clean-out" and a FTP adapter to use a store-bought check-valve. ... show more
Reviewed in the United States on August 8, 2025 by That Guy!

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