Wayne CDU790 1/3-Horsepower Cast Iron Submersible Sump Pump

by Wayne

Product Description

From the Manufacturer

The Wayne CDU790 features durable cast iron housing for long life and quiet operation. This submersible pump is compactly designed for 11" or larger sump pits. The CDU series is one of the most popular replacement pumps in America. The ceramic mechanical seal assures long life in the most demanding applications and the 1 1/2" discharge allows easy installation plus maximum flow. Similar applications to the following brands of submersible sump pumps , Craftsman, Zoeller, Flotec, Water Ace, Myers, Little Giant, Liberty, Pit Viper, Ridgid, Blue Angel, Sta-Rite, Starite, Diamond, Star, Flint and Walling, Coleman, Maytag, Jacuzzi, ShurDri, Shur-dri, GSW, Teel, Master Plumber, UL listed

Product Description

Cast iron pump housing for long life and quiet operation. Compactly designed for small sump pits. Two pole mechanical float switch provides on-off action for many years of safe, reliable service. Overload protection keeps motor from over-heating. Permanen tly lubricated ball bearing never needs oiling. Unitized shaft seal for long life. Top suction strainer stops foreign particles before they can clog the pump. Thermoplastic top assembly will not rust or corrode. Easy to install. 10" minimum sump diameter; 9" on-level; 3-1/2" off-level. 1-1/4" discharge.

Product Details

• Product Dimensions: 9 x 9 x 12 inches ; 16 pounds
• Shipping Weight: 16.2 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B0002YVQA2
• Item model number: CDU790
• Average Customer Review: 4.2 out of 5 stars  See all reviews (12 customer reviews)
• Amazon Best Sellers Rank: #15,010 in Home Improvement (See Top 100 in Home Improvement)
  • #22 in Home Improvement > Rough Plumbing > Water Pumps & Accessories > Sump Pumps

Customer Reviews

Most Helpful Customer Reviews

16 of 18 people found the following review helpful:

1.0 out of 5 stars Dont Buy Unreliable, December 21, 2008

By 

A. Miles "milesap" (Somerset, NJ USA) - See all my reviews
(REAL NAME)   

This review is from: Wayne CDU790 1/3-Horsepower Cast Iron Submersible Sump Pump (Tools & Home Improvement)

I like the pump design I have had both ACE and Wayne 1/3 and 1/2 HP pumps. There are two problems - switch life is 2 years or less depending how often its used. The float rod is regular steel and rusts causing the float to stick, which causes the pump to stay on or off. I can't figure why Wayne would make a great pump with lousy parts. Yup I can typical American manufacturer; no life testing and poor quality control. Recommend you stay away from Wayne pumps. Remember you don't need the pump when its dry - they fail when you need them the most, in a rain storm at 2 pm or when your on vacation, again stay away from these Wayne pumps. They have known about these design flaws for years and done nothing about it.

4 of 4 people found the following review helpful:

5.0 out of 5 stars CDU790 Sump Pump Review, March 12, 2009

By 

Lawrence Coppari (Kingsport, TN) - See all my reviews
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This review is from: Wayne CDU790 1/3-Horsepower Cast Iron Submersible Sump Pump (Tools & Home Improvement)

Pump arrived promptly and works as advertised. I am a satisfied customer. I have no hesitation recommending this pump.

I had a flooding problem in my driveway across from several garages. The water had nowhere to go but eventually would reach the point where it would flow down sidewalk across front yard removing mulch from flower/shrubbery beds. The pump was placed in a sump that holds about 15 gallons. It is fed by two drains located at driveway low points and piped to sump. With moderate rainfall, pump comes on about every 40 seconds for a 9 second interval. For very heavy rainfall, pump comes on about every 11 seconds for an 11 second run. I have pump exhausting through a 1.5 in PVC pipe about 60 feet long to city street. The pipe goes uphill about 3 feet including its depth in sump. Calculations indicate it is putting out about 1900 gpm to street. Pump is rated at 2800 gpm for a 5 ft. head. Head includes altitude change as well as pipe losses. Therefore with 60 feet of pipe plus some elbows, the rate must be less.

2 of 2 people found the following review helpful:

5.0 out of 5 stars GREAT WORKING SUMP PUMP, May 11, 2008

By 

R. Adams - See all my reviews
(REAL NAME)   

This review is from: Wayne CDU790 1/3-Horsepower Cast Iron Submersible Sump Pump (Tools & Home Improvement)

I bought one of these 12 years ago and it still worked, but the shut of switch quit. I decided not to fix that, get a new one, not only did it get used for the cockpot in basement, but the washing machine was run through the cockpot so the sump pump got a good work out every day. Don't buy the pedestal type, they only last 1 or 2 years, the submersible pumps are the way to go, very dependable and will last for years.