0040066100016

Wayne

Model CDU790

Internet #100026900

1/3 HP Cast Iron Submersible Sump Pump with Vertical Float Switch

$117.42 /each
  • Pumps up to 3800 GPH at 0 ft.
  • Rugged, cast iron base and metal construction
  • Top suction design filters debris and minimizes clogging

Frequently Bought Together

Product Overview

Wayne's CDU790 features a durable cast iron base and epoxy-coated housing for long life and quiet operation. This submersible pump is designed for 11 in. 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 in. discharge allows easy installation plus maximum flow.

  • Submersible cast iron and coated steel sump pump with vertical float switch
  • Top suction pump design eliminates air locks and clogging from debris in bottom of sump pit
  • Epoxy-coated steel motor housing and rugged, cast iron pump base
  • Fully submersible
  • 1/3 HP; max. flow rate is 3800 GPH; 2700 GPH at 10 ft. of discharge lift
  • 1-1/2 in. NPT discharge
  • For use in 11 in. Dia or larger sump basins; 9 in. on level and 4 in. off level
  • On 9 in. - off 4 in.
  • Assembled in the U.S.A.
  • Additional Features:


  • Click here for more information on Electronic Recycling Programs

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.

Specifications

Dimensions

Details

Warranty / Certifications

More Products With These Features

Search

Customer Questions & Answers

20 Questions25 Answers

Customer Questions & Answers

1/3 HP Cast Iron Submersible Sump Pump with Vertical Float Switch
1/3 HP Cast Iron Submersible Sump Pump with Vertical Float Switch

Ask your questions. Share your answers.

 
 
Clear Search Term
 
 
Sort By:
 
4 answers

does this pump require a dedicated electrical circuit?

This question is from 1/3 HP Cast Iron Submersible Sump Pump with Vertical Float Switch
Asked by
Germansville, PA
Read all my Q&A
July 22, 2015
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answers (4)

Asked by
Raleigh NC
Read all my Q&A
Home Improvement Profile: DIYer
November 23, 2015
Answer: 
Electrical requirement wise (Building code may require it) i don't think so but safety wise it should be on it's own GFI circuit with a alert type light to let you know if the circuit trips. You can't depend on any pump to run 100% of the time and if you have a serious water problem and the sump pumps stops working and you don't know it damage occurs.
0points
1out of 2found this answer helpful.
Was this helpful?helpful1unhelpful1

October 20, 2015
Answer: 
It does not, but I would recommend a GFCI outlet for safety...
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0

Asked by
Leavenworth
Read all my Q&A
September 30, 2015
Answer: 
No
+1point
2out of 3found this answer helpful.
Was this helpful?helpful2unhelpful1

Asked by
Schererville, IN
Read all my Q&A
July 24, 2015
Answer: 
No, this pump shares electrical circuits with another pump.
+1point
3out of 5found this answer helpful.
Was this helpful?helpful3unhelpful2
 
3 answers

Can this pump work in a yard with standing water?

This question is from 1/3 HP Cast Iron Submersible Sump Pump with Vertical Float Switch
Asked by
Florida
Read all my Q&A
August 9, 2015
Here in Florida we just had a realy bad storm, I have standing water that has no where to drain I just need a pump for a small back yard the water is setteling at my a/c unit and In the middle of my yard is a slope If I had a hose long enough to go around the side of my home. my front yard has a slope where it can drain. I've never used one of these. Can someone please help me?
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answers (3)

Asked by
Raleigh NC
Read all my Q&A
Home Improvement Profile: DIYer
November 23, 2015
Answer: 
Yes, but make sure you have a primary debris screen for leaves, and stuff - also make sire you plug into a GFI outlet. For a emergency use you would be ok, but I would not install any sump pump outside there are pumps designed for exposure to the elements.
+1point
1out of 1found this answer helpful.
Was this helpful?helpful1unhelpful0

October 20, 2015
Answer: 
Possibly...This is designed to sit in a sump pit so that the water level will rise high enough to actuate the float...so if you placed it in a low spot in a basin or sump pit it may help out with the standing water...
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0

Asked by
Leavenworth
Read all my Q&A
September 30, 2015
Answer: 
Yes
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
 
2 answers

Can this pump be used in series with another below it in the event one fails?

This question is from 1/3 HP Cast Iron Submersible Sump Pump with Vertical Float Switch
Asked by
Read all my Q&A
December 21, 2015
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answers (2)

Asked by
Encinitas, Ca
Read all my Q&A
Home Improvement Profile: Other
July 6, 2016
Answer: 
Not in series, but in parallel. You will have to be careful with the floats used to activate the pump. Mounting pumps in series means that one pump discharges into the suction of the second pump and parallel means that the pumps are manifolded together to discharge into the same discharge line, much like all the cylinders on your car are manifolded into one exhaust pipe.
You will have to think about the
Read More
Not in series, but in parallel. You will have to be careful with the floats used to activate the pump. Mounting pumps in series means that one pump discharges into the suction of the second pump and parallel means that the pumps are manifolded together to discharge into the same discharge line, much like all the cylinders on your car are manifolded into one exhaust pipe.
You will have to think about the floats since they will cause both pumps to turn on and off at the same time if you set them side by side at the same elevation. One way to prevent this is to put the pumps in a sump with one higher up int the sump. The lower on will normally run and the higher one will run if the lower one fails. You could also try to lengthen the cord of one pump's float cable
Read Less
+1point
1out of 1found this answer helpful.
Was this helpful?helpful1unhelpful0

December 24, 2015
Answer: 
Yes. I put the second one on two bricks.
+1point
1out of 1found this answer helpful.
Was this helpful?helpful1unhelpful0
 
2 answers

Does this pump have a float sensor?

This question is from 1/3 HP Cast Iron Submersible Sump Pump with Vertical Float Switch
Asked by
Read all my Q&A
November 3, 2015
The location for our sump pump requires that it has a float sensor so that we don't have to access it regularly. Does this have one? The specs look like it does but I want to ask before we purchase it.
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0

Answers (2)

Asked by
Encinitas, Ca
Read all my Q&A
Home Improvement Profile: Other
July 6, 2016
Answer: 
yes.
+1point
1out of 1found this answer helpful.
Was this helpful?helpful1unhelpful0

Asked by
Raleigh NC
Read all my Q&A
Home Improvement Profile: DIYer
November 23, 2015
Answer: 
yes, vertical mounted, not floating in the sump hole - I've had these "floaters" get hung up against the side of the sump hole and run the unit dry - burned out pump.
+2points
2out of 2found this answer helpful.
Was this helpful?helpful2unhelpful0
2 »
  • 2016-09-29 T13:16:52.439-05:00
  • bvseo_lps, prod_bvqa, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasquestionsanswers
  • loc_en_US, sid_100026900, prod, sort_default
2 »
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 213ms
  • QUESTIONS, PRODUCT

Customer Reviews

Rated 4.7 out of 5 by 129 reviewers.
Rated 5.0 out of 5.0 by Outstanding Purchased on-line via Home Depot. Arrived the next day. All aspects of this is top-notch. Looks like a Zoeller, but a much better price. The float is attached at the bottom, so it won't bounce around and hit the sides. Very quiet, sucks up the water is 5-6 seconds. Use it also for clothes washing machine discharge, but remember to place a steel mesh 'stock" on the end of the discharge hose to catch any lint. Avoid using hot water setting on the washer. Their website actually answered two on-line questions very quickly. The low 1/3 hp is all I need and will not trip any GFI. August 20, 2016
Rated 5.0 out of 5.0 by Easy Install Easy to install. A few dollars worth of replacement parts to replace the old valve , but replaced a pedestal with a submersible and it looks so much nicer August 2, 2016
Rated 5.0 out of 5.0 by I'm Pumping. Great Product. I have a low spot in my yard that ponds during heavy rain. I researched putting in a sump pump by watching on-line videos. I installed a 6" catch basin in the area and plumbed it to a Home Depot bucket, buried a few feet away, with 4" PVC pipe. The bucket was buried a few inches below the surface. I increased the height of the bucket by cutting off the bottom 4" of another bucket, and placing the top into my buried bucket. The buckets were attached to each other with screws. I bought the Wayne 1/3 HP Sump Pump and a check valve on line from Home Depot. I wanted a pump with a vertical float switch. I had earlier purchased another pump (not from Home Depot) with a tether float and couldn't get the float to work properly. It had to fit in my bucket sump. Wayne products had good reviews and appeared easy to install. Both items arrived quickly and were well packaged. The instructions were easy to read and understand. I purchased a few fittings and connected the check valve to the pump. I placed the pump into my bucket sump and then plumbed 1 1/4" pipe from it to a v-ditch on the side of my yard. I capped the sump bucket with a bucket lid. This set up worked great during a test. It is very quiet. The real test came with the heavy rains we received the past week. It has continued to work flawlessly. January 20, 2016
Rated 4.0 out of 5.0 by Great sump pump The pump was very easy to install and runs like a charm. June 28, 2016
Rated 5.0 out of 5.0 by Wayne 1/3 hp sump pump Install was easy and the pump is VERY quiet running. I had to re-plumb my discharge to bring it up to 1-1/2" pipe, but that's easy with PVC pipe. It's only been installed for about a month, but I'm very happy with it. My old pump (a Little Giant 1/6 hp) lasted 20 years - hopefully this one will, too ! March 1, 2016
Rated 5.0 out of 5.0 by Solid well built pump My Flotec sump pump finally went south. Had it for over 20 years with no problems. So, needed to replace it. After searching the reviews on some pumps, no question to get a Wayne. It matched up perfectly without having to modify any plumbing. I got a vertical switch this time, since the sump pit is square and not enough room for a tethered switch. I had to shorten the tether on my previous pump. I also like the vertical switch keeps the water level quite a distance below the floor. Good quality pump. February 12, 2016
Rated 5.0 out of 5.0 by Looks to be well built and is American made. Less than one month after receiving and installing this pump is too early to rate this but HD insists. It arrived on time, looks well built and was easy to install. Whether it will last and perform well only time will tell. It is American made. February 18, 2014
Rated 4.0 out of 5.0 by Waters out of the basement! The pump arrived ahead of schedule and was very easy to install. Like the others have said, it is very quiet in operation. January 26, 2016
  • 2016-09-17 T12:52:44.873-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_129, tr_129
  • loc_en_US, sid_100026900, prod, sort_default
2 3 4 5 6 >>
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 159ms
  • REVIEWS, PRODUCT