---
product_id: 12472284
title: "WAYNE CDU790 1/3 HP Submersible Water Pump, Heavy Duty Basement Sump Pump"
brand: "wayne"
price: "R10181"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Wayne"
url: https://www.desertcart.co.za/products/12472284-wayne-cdu790-1-3-hp-submersible-water-pump-heavy-duty
store_origin: ZA
region: South Africa
---

# 4600 GPH max flow rate 0.3 HP motor power 3-year warranty & corrosion resistance WAYNE CDU790 1/3 HP Submersible Water Pump, Heavy Duty Basement Sump Pump

**Brand:** wayne
**Price:** R10181
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your basement dry and your peace of mind even drier!

## Quick Answers

- **What is this?** WAYNE CDU790 1/3 HP Submersible Water Pump, Heavy Duty Basement Sump Pump by wayne
- **How much does it cost?** R10181 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/12472284-wayne-cdu790-1-3-hp-submersible-water-pump-heavy-duty)

## Best For

- wayne enthusiasts

## Why This Product

- Trusted wayne brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Cast iron housing with epoxy coating and stainless steel fasteners for unmatched durability.
- • **Quiet Yet Powerful:** Ultra-quiet operation pumps water at a rapid 63 gallons per minute without disturbing your peace.
- • **Smart Auto Protection:** Integrated vertical float switch tested for 1 million cycles ensures reliable, automatic basement defense.
- • **Effortless Installation:** Top suction design means no drilling, no hassle—get it running in 15 minutes flat.
- • **Trusted American Quality:** Proudly assembled in the USA with a 3-year warranty—because your home deserves the best.

## Overview

The WAYNE CDU790 is a heavy-duty 1/3 HP submersible sump pump designed for 11-inch or larger basins. Featuring a top suction design to minimize clogging, a corrosion-resistant cast iron body, and an ultra-quiet motor, it pumps up to 4600 gallons per hour. With an integrated vertical float switch tested for 1 million cycles and a 3-year warranty, this pump delivers reliable, automatic water removal to protect your basement from flooding.

## Description

Product Description 1/3 hp cast iron submersible sump pump with vertical switch pumps up to 4600 gph at 0' designed for 11 inch diameter or larger sump basin top suction design filters debris and minimizes clogging designed for easy installation without any Plumbing changes epoxy coated steel high performance 1/3 hp motor 1-1/2 inch NPT discharge & durable cast iron base easy carry handle for portability float guard protects switch from hang ups Easy installation and easy handling. 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. Intended for indoor use only.

Review: Quality - So far super quiet and seems to be of better quality than my last unhonorable mention.
Review: Best Sump Pump I ever had - We have two sump pumps in our basement to keep it nice and dry. Every 4 years or so, even less, we have to replace one. I have been buying the same brand every time and thought there has to be something better. I have read how good the Wayne sump pumps are and decided to try one out. I got the model WAYNE CDU790 and it is absolutely great. Right away out of the box you can feel is it quality. The old ones I bought were thermoplastic and only one lasted the expected 5 years. Some lasted a little over 4 years, most did not. The cast iron is heavy duty with stainless steel hardware holding it all together. The impeller is also stainless steel protected by a cast iron shroud. It has a long cable for reaching the outlet. The installation was very easy, and the operation is so quiet that I was worried that it wasn't working. I had to remove the cover to see if it was working and it is. My old pumps were so loud you could hear them upstairs every time they ran. The Wayne pumps water MUCH faster than the old pumps I bought. The sump empties in a matter of only a few seconds. This is a solid sump pump with a 3 year warranty. I registered it online immediately and am confident it will outlast my old pumps by far. The expected life if 6 years. For all of that, I give it 5 stars. Also for a super value and price as well as terrific quality.

## Features

- Efficient Design - This small submersible pump uses a top suction design that eliminates air lock and minimizes clogging from debris at the bottom of the sump pit. Install in about 15 minutes with no need to drill a weep hole.
- Tough And Durable - A corrosion-resistant epoxy coated steel motor housing, stainless steel fasteners a cast-iron volute give this small pump long life in tough sump pump applications
- Quality You Deserve - This corded electric water pump is proudly assembled in the USA and warrantied for 3 years. Its dependable, efficient, ultra-quiet performance provides quality you can trust
- Indoor Use Only - This 1/3 HP WAYNE sump pump supports basement water removal during heavy water flow from rain or snow melting. Model CDU790 can pump up to 4,600 GPH to help keep your basement dry
- Tested Vertical Float Switch - Integrated float switch tested to 1 million cycles for dependable automatic operation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002YVQA2 |
| Best Sellers Rank | #7,062 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #5 in Sump Pumps |
| Brand | Wayne |
| Brand Name | Wayne |
| Color | Black |
| Customer Reviews | 4.7 out of 5 stars 2,321 Reviews |
| Flow Rate | 63 gpm |
| Global Trade Identification Number | 00040066100016 |
| Horsepower | 0.3 hp |
| Included Components | Pump |
| Item Dimensions L x W x H | 9"L x 6.5"W x 11.5"H |
| Item Highlight | Sump pump with float switch; automatic operation helps keeps your basement dry during rain and heavy flow |
| Item Type Name | 1/3 HP Submersible Cast Iron and Steel Sump Pump With Integrated Vertical Float Switch |
| Item Weight | 16.4 pounds |
| Manufacturer | Wayne Water Systems |
| Manufacturer Part Number | CDU790 |
| Manufacturer Warranty Description | 3 Year Limited |
| Material | Cast Iron |
| Material Type | Cast Iron |
| Maximum Lifting Height | 20 feet |
| Model Number | CDU790 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 9"L x 6.5"W x 11.5"H |
| Product Style | 1/3 HP Coated Steel |
| Specific Uses For Product | water pumpping |
| Style | 1/3 HP Coated Steel |
| UPC | 040066100016 784644738467 783324962109 |
| Unit Count | 1 Count |
| Voltage | 120 volts |

## Product Details

- **Brand:** Wayne
- **Color:** Black
- **Item Weight:** 16.4 pounds
- **Material:** Cast Iron
- **Maximum Flow Rate:** 63 gpm
- **Maximum Lifting Height:** 20 feet
- **Power Source:** Corded Electric
- **Product Dimensions:** 9"L x 6.5"W x 11.5"H
- **Style:** 1/3 HP Coated Steel
- **Voltage:** 120 volts

## Images

![WAYNE CDU790 1/3 HP Submersible Water Pump, Heavy Duty Basement Sump Pump - Image 1](https://m.media-amazon.com/images/I/61pJjqfsRrL.jpg)
![WAYNE CDU790 1/3 HP Submersible Water Pump, Heavy Duty Basement Sump Pump - Image 2](https://m.media-amazon.com/images/I/71MaUX+q5jL.jpg)
![WAYNE CDU790 1/3 HP Submersible Water Pump, Heavy Duty Basement Sump Pump - Image 3](https://m.media-amazon.com/images/I/8112m0LLJLL.jpg)
![WAYNE CDU790 1/3 HP Submersible Water Pump, Heavy Duty Basement Sump Pump - Image 4](https://m.media-amazon.com/images/I/91jmnthXaQL.jpg)
![WAYNE CDU790 1/3 HP Submersible Water Pump, Heavy Duty Basement Sump Pump - Image 5](https://m.media-amazon.com/images/I/81hdRcW5f-L.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: 1) If I wanted to use a garden hose what kind of attatchment do you recommend?**
A: You would have reduce the 1 1/2 cvp pipe down to about 3/4 then attach threaded cuplin to screw the hose on. Reducing it down, don't know if hurt the pump.

**Q: This sump pump come with check valve ?**
A: This pump does not come with a check valve.

**Q: what kind of life would this pump have in a koi pond that runs 24/7 365. I have a savio skimmer. Had been using a dayton pump, but they are $$$.???**
A: The CDU790 is a sump pump designed for residential, indoor, ground water only, sump pit applications. We would not recommend using any sump pump continuously or in a pond with aquatic life. Thank you.

**Q: What type of water hose would be best for emptying a spa?**
A: Thank you for contacting us with your question. This unit is not for spas or pools. This unit is only for removing ground or rain water from a basement sump. We could not advise on products to use with the unit if it is being used in an environment that it was not designed for and would void all warranties. I apologize for the inconvenience. 
Thank you again,
Tina

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality
*by N***L on August 30, 2026*

So far super quiet and seems to be of better quality than my last unhonorable mention.

### ⭐⭐⭐⭐⭐ Best Sump Pump I ever had
*by R***3 on February 25, 2022*

We have two sump pumps in our basement to keep it nice and dry. Every 4 years or so, even less, we have to replace one. I have been buying the same brand every time and thought there has to be something better. I have read how good the Wayne sump pumps are and decided to try one out. I got the model WAYNE CDU790 and it is absolutely great. Right away out of the box you can feel is it quality. The old ones I bought were thermoplastic and only one lasted the expected 5 years. Some lasted a little over 4 years, most did not. The cast iron is heavy duty with stainless steel hardware holding it all together. The impeller is also stainless steel protected by a cast iron shroud. It has a long cable for reaching the outlet. The installation was very easy, and the operation is so quiet that I was worried that it wasn't working. I had to remove the cover to see if it was working and it is. My old pumps were so loud you could hear them upstairs every time they ran. The Wayne pumps water MUCH faster than the old pumps I bought. The sump empties in a matter of only a few seconds. This is a solid sump pump with a 3 year warranty. I registered it online immediately and am confident it will outlast my old pumps by far. The expected life if 6 years. For all of that, I give it 5 stars. Also for a super value and price as well as terrific quality.

### ⭐⭐⭐⭐⭐ Great pump for tight water well
*by B***K on September 10, 2025*

This sump pump is great. This was my third pump that I purchased . My water well is very narrow measuring at interior for 11 inches diameter . None of the other pumps would work as the float would get stuck and make pump run indefinitely (even those that claim to be “tight space friendly “. This pump fits just right , it’s silent , expels water outside very quick and effectively . Best of all it comes with 3 year warranty unlike the competition at only one year . Highly recommend

## Frequently Bought Together

- WAYNE CDU790 - 1/3 HP Submersible Cast Iron and Stainless Steel Sump Pump with Integrated Vertical Float Switch - Up to 4,600 Gallons Per Hour - Heavy Duty Basement Sump Pump, Black
- Wayne Pumps 66005-Wyn Check Valve, PVC
- PumpSpy Sump Pump Stand, Durable Sump Pump Stand that Prevents Sediment Buildup and Clogging, Stand for Sump Pump for Flooding Prevention, Increases Sump Pump Life, Compatible with Most Sump Pumps

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-09-18*