0040066206534

RIDGID

Model # 330RSU

Internet # 100114282

Store SKU # 784935

1/3 HP Submersible Sump Pump

Frequently Bought Together

Product Overview

The RIDGID 1/3 HP Submersible Sump Pump provides a maximum pumping capacity of 4,200 gallons per hour. The unit features a submersible two-pole switch and a top-suction intake that allows for 1/2 inch solids to pass.

California residents: see  Proposition 65 information

  • High performance, energy efficient motor lengthens the life of the switch and electrical components
  • Unique top suction design reduces clogging and prevents air locks
  • Upper and lower ball bearings in a sealed bath of oil for quiet performance and long life
  • Carbon/ceramic shaft seal for smooth operation and long life
  • 11/2 in. NPT discharge for easy installation and compliance to building codes
  • Cast iron impeller and base construction to out perform in tough SUMP applications
  • 11 in. diameter or larger sump basin minimum

Info & Guides

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Specifications

Dimensions

Maximum Pumping Height (ft.) 
22 
Product Depth (in.) 
10 in 
Product Height (in.) 
12 
Product Width (in.) 
10 
Switch-Off Height (in.) 
Switch-On Height (in.) 

Details

Amperage (amps) 
3.5 
Battery Back-Up 
No 
Cord Length (ft.) 
Discharge Flow @ 0 ft. (gallons/hour) 
4200 
Discharge Flow @ 10 ft. (gallons/hour) 
2880 
Discharge Flow @ 15 ft. (gallons/hour) 
216 
Horsepower (hp) 
1/3 hp 
Housing Material 
Thermoplastic 
Maximum Working Temperature (F) 
120 
Minimum working temperature (F) 
40 
Power Type Required 
AC 
Product Weight (lb.) 
16 lb 
Pump Switch Type 
Vertical 
Returnable 
90-Day 
Self-Priming 
Yes 
Submersible 
Yes 
Sump Pump Outlet Diameter Type 
1-1/2 FPT 
Voltage (volts) 
120 

Warranty / Certifications

Certifications and Listings 
CSA Listed 
Manufacturer Warranty 
RIDGID 3 Year Limited Warranty 

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Customer Questions & Answers

8 Questions13 Answers

Customer Questions & Answers

1/3 HP Submersible Sump Pump
1/3 HP Submersible Sump Pump

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This question is from 1/3 HP Submersible Sump Pump
 
6 answers

what is the warnnty on this pump?

This question is from 1/3 HP Submersible Sump Pump
Asked by
buckwheat
September 3, 2012
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Answers (6)

Asked by
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January 4, 2014
Answer: 
Currently, 3 years. Those purchased before 2006 had a Lifetime Warranty.
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Asked by
Columbus, Ohio
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December 29, 2013
Answer: 
3 Years
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June 8, 2013
Answer: 
3 years
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Asked by
Albany, NY, USA
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February 25, 2013
Answer: 
Limited 3 year warranty to be free of material and workmanship defects for 3 years from the date of purchase. See the warranty link at the bottom of the product page.
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Asked by
43081
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October 6, 2012
Answer: 
3 years
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Asked by
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September 4, 2012
Answer: 
It has a three (3) year warranty.
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This question is from 1/3 HP Submersible Sump Pump
 
1 answer

it sounds like there is an alarm that is going off, but the pump is not pumping.

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Collegeville, PA
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June 6, 2016
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Answer (1)

Asked by
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June 15, 2016
Answer: 
Thank you for contacting RIDGID. Based on the information provided here, the primary pump does not have an alarm. It sounds like your back up is activating. The primary pump is likely not pumping and that is causing the back up system to alarm. We hope this helps.
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1 answer

Can the base of the model 330RSU pump be removed for cleaning?

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Alpena, MI
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May 2, 2016
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Answer (1)

Asked by
Farmington, MI, USA
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May 3, 2016
Answer: 
Probably. But why would you need to?
This is not an effluent pump. It is designed to remove (pump out) accumulated ground water, not sand,silt, mud or rocks. The pump should be installed above the bottom of the sump pit on a block (a paving stone will work) to prevent 'hard objects' form entering the impeller housing.
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start up watts

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Bloomingdale,IL
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April 27, 2016
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Answer (1)

Asked by
Farmington, MI, USA
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May 1, 2016
Answer: 
This sum pump is installed at my daughter’s home and I can’t readily measure it. To measure, it I would need to measure input voltage and current with an oscilloscope, then calculate (or have the scope do it) Watts.
Basic engineering information
Electrical: Watts = Volts x Amps
Mechanical: Horsepower = Speed x Torque: (Speed {RPM} x Torque {ft. lbs.}) / 5252
Converting: 1 Horsepower is 550 ft. lbs.
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This sum pump is installed at my daughter’s home and I can’t readily measure it. To measure, it I would need to measure input voltage and current with an oscilloscope, then calculate (or have the scope do it) Watts.
Basic engineering information
Electrical: Watts = Volts x Amps
Mechanical: Horsepower = Speed x Torque: (Speed {RPM} x Torque {ft. lbs.}) / 5252
Converting: 1 Horsepower is 550 ft. lbs. / second = 745.7 Watts
However; based on your question, I’m assuming you want to run this sump pump with an inverter. In that case let me simplify. A 1/3 horsepower motor (induction type) under load will need ~ 800 Watts to run and 1400 to 3000 Watts starting. The inrush for first ½ cycle of AC (~16 milliseconds) may be 10 – 20 times the running current, and 2 – 4 times the running current until the motor is up to speed (2 – 5 seconds). Depending on inverter design, some may detect this as a ‘short circuit’ and shut down, others will maintain output power (by reducing voltage) and attempt to start the motor for several seconds.
Hope this helps – Mike
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Customer Reviews

Rated 3.2 out of 5 by 62 reviewers.
Rated 5.0 out of 5.0 by Easy 'do it yoursef project' to save $300+ plumber cost Installed one of these in my home 10 years ago. Needed to replace my daughters sump pump. It was probably ~ 10 years old and the switch got stuck on during an early Spring rain. The cost of a new switch is $20~$30 range, and that would have fixed it. However these pumps have a 5~10 life span depending on your ground water. So I opted to just replace it. The old pump had some contorted check valve / coupling joints (see picture) that needed to be replaced. Relatively easy to replace: Get the old one out of the pit. Remove hose clamps or hacksaw.. Check to see if there is a 'brick / block' in the pit to keep the pump a bit elevated and allow stones a place to collect. Need / buy: Pump, check valve, PVC to pump outlet adapter, 1 1/2" PVC pipe, PVC glue, coupling from new pump to existing plumbing. I used a rubber coupling (~ 6" long) used to join the 1 1/2" PVC ends. You can use a solid (glued PVC) fitting ~$2 or the rubber one I chose ~$5...How accurately can you measure / future replacement? Level it up, align the PVC discharge plumbing, clamp it in place. Overall a bit 'messy' job that will take ~2hours and save you a $300 plumber bill. April 5, 2016
Rated 5.0 out of 5.0 by It really did the job Purchasing this sump pump was an emergency deal, the sump was already starting to overflow because the previous pump had failed. This pump was well displayed and recommended by a sales associate. The installation was incedibly easy, since I was attaching a flexible hose and placing it in a deep sump full of icy cold water. The capacity of the pump was great enough to empty the sump despide a heavy flow of rainwater into the sump. It ran almost constantly for several days as the water kept pouring in, and never gave any problems at all. Eventually the situation has stablized and it only has to run a few times every hour. The pump is very quiet, and does not make a noise when it stops or when it starts. So my customer is very pleaserd with my choice. April 26, 2016
Rated 5.0 out of 5.0 by Super Quiet This pump is so quiet, the only thing you hear is the click of the switch activating. A contractor installed a cheap, plastic pump with a poorly functioning tether switch when I had my basement wall replaced. It was so loud you could hear it on our second floor. This pump is so quiet that even when standing next to it, the only sound you hear is the switch clicking. It is very, very quiet. February 20, 2016
Rated 1.0 out of 5.0 by Cheap parts This pump looks great for the price until you open the box and install it. The float is of concern, because there is a rubber guide for the float rod. This part is of big concern, because it comes loose easily. October 21, 2014
Rated 5.0 out of 5.0 by Most versatile unit I used this unit initially to drain my cistern. It took approximately 10 hours to drain. Worked great. I now use it in my basement in my sump pump. Really happy that this was the one I purchased. January 5, 2016
Rated 1.0 out of 5.0 by Bad product The weak part of the product was the outside thin supporting bar. It is easy to broken due to the rust under the water. You will not detect the issue until your basement is flooded. March 11, 2014
Rated 5.0 out of 5.0 by works well The instructions were clear and straight forward. Went together easily. Helpful clerk at Home Depot knew just what we needed. Put together in 1/2 hour and its working fine. December 8, 2015
Rated 5.0 out of 5.0 by Sump Pump Since we installed the sump pump worked perfect. Is a good product. October 6, 2015
  • 2016-07-24 T18:14:07.890-05:00
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