---
product_id: 12472284
title: "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"
brand: "wayne"
price: "₨10442"
currency: SCR
in_stock: true
reviews_count: 12
category: "Wayne"
url: https://www.desertcart.sc/products/12472284-wayne-cdu790-1-3-hp-submersible-cast-iron-and-stainless
store_origin: SC
region: Seychelles
---

# 1/3 HP motor power Up to 4,600 GPH flow rate Cast iron & stainless steel durability 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

**Brand:** wayne
**Price:** ₨10442
**Availability:** ✅ In Stock

## Summary

> 💧 Stay dry, stay ahead — the powerhouse sump pump your basement deserves!

## Quick Answers

- **What is this?** 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 by wayne
- **How much does it cost?** ₨10442 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/12472284-wayne-cdu790-1-3-hp-submersible-cast-iron-and-stainless)

## 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

- • **Clog-Free Confidence:** Innovative top suction design minimizes clogging and air locks, so your pump runs smoothly without interruption.
- • **Power Through Any Flood:** Robust 1/3 HP motor delivers rapid water removal up to 4,600 gallons per hour, keeping your basement dry when it matters most.
- • **Plug & Play Installation:** Set up in just 15 minutes with no plumbing modifications or drilling required—get protected fast and hassle-free.
- • **Built to Last, Built to Perform:** Epoxy-coated cast iron housing and stainless steel fasteners ensure corrosion resistance and long-lasting reliability in tough conditions.
- • **Quiet, Dependable, American-Made:** Proudly assembled in the USA with a 3-year warranty for ultra-quiet operation and peace of mind.

## Overview

The WAYNE CDU790 is a heavy-duty 1/3 HP submersible sump pump designed for indoor use in 11-inch or larger basins. Featuring a corrosion-resistant cast iron body with stainless steel fasteners, it pumps up to 4,600 gallons per hour with a clog-resistant top suction design. Easy to install in 15 minutes without plumbing changes, it offers quiet, reliable performance backed by a 3-year warranty and is proudly assembled in the USA.

## 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: Horror Story with a Happy Ending Courtesy of Wayne Sump Pump! - I recently purchased a 95% gut renovation in Chicago. The plumbing work that was done is phenomenal, so I was extremely surprised to find a 1/2 inch of water in half of my newly finished basement after our first flash flood rain of the summer last month. I pulled the sump basin lid off and sure enough, it completely full. I fished around in the water with my hand until I found float and wiggled it around a few times which finally triggered the pump to turn on. It drained the basin and drained the water that had backed in the inlet pipes, leaving me to push all of the standing water floor drain and spend a few days cleaning up the mess. When it rained again that weekend, I immediately went down to the basement and sure enough, I watched the basin fill quickly, but the float didn't trigger pump again, so there I sat on the floor in the utility room, for 3 hours in the middle of the night, hitting the float with a piece of wood every 5 minutes to turn the pump on. Once it stopped raining, I pulled the pump out, which is when I learned it was a Flotec FPZS33T model. I disassembled the float switch, cleaned all of the contacts, reassembled the switch, checked all of the seals, cleaned the intake, and put the pump back in the basin. I ran my garden hose into basin, and successfully triggered the float switch. I was feeling pretty satisfied with my handy work. Problem solved right? Wrong. We got through two more decent rains without any problems. The pump seemed to be working well. On Wednesday night (two days ago), the entire Chicagoland area was under Flash Flood and Tornado warnings. When the rain started, I went down to the basement and everything seemed good. After about 20 minutes, I went back down to the basement and noticed that basin was 2/3 full, but the pump was still running full tilt because I could not only hear it, but I could hear the water moving through the discharge pipe. I sat there for the next 20 minutes and watched the basin slowly fill to capacity, backing up the inlet pipes yet again. Within an hour of the rain starting, I had water beginning to pool on the floor again, not as badly as the first time because the pump was actually on, but bad enough to really tick me off. This pump was less than a year old, and it already had a faulty switch and completely failed to keep pace with a regular summer thunder storm! I ordered a Wayne CDU980E 3/4 horsepower sump pump on desertcart with overnight delivery. The pump came by noon yesterday. I had it installed in 15 minutes because the fittings and pipe lengths were a perfect match. I tested it and it ran great. Last night we had another torrential downpour and new pump worked like a champ! This thing didn't even break a sweat, and it is actually a bit quieter than the other pump to boot! I'm very satisfied. Great product and incredibly easy to install! The Wayne pump only cost $30 more than the Flotec pump and it is a much better design and WAY me powerful. I'll monitor the performance over the summer and post back if anything changes. The good news for Flotec is that I might not throw their garbage pump away immediately. I'm thinking of making an outdoor basin that catches rainwater from my gutter downspout and then pump it into a larger catchment in my garden to use for watering my plants. So yeah, this pump will spend the remainder of its life in my garden, moving rainwater for my vegetables, but I will never allow it near my home ever again!
Review: Best fastest most powerful pump EVER!!!! - This pump is better than what I imagined it could be. The pump that I used for 20 years failed a few months ago and it would take 25 minutes to empty my hot tub which holds two hundred 30 gallons. I bought this new beast and hooked it up and it took less than 5 minutes to empty my hot tub. Remember to order the appropriate hose with it. As I was doing my research it seemed as though none of the hot tub manufacturers remind you that you need to purchase an exit hose This sump pump has an inch and a half throat at the exit So I did my research and watched a bunch of videos and realized that I had to buy an exit hose with a 1 1/2 inch thread. it went together perfectly and it works like an absolute charm if you need to know which hose to get with this it is the Drainage Industries Dischrg Hose 1.5x1.5x24' https://www.desertcart.com/dp/B06XS5TMDD?ref=ppx_yo2ov_dt_b_fed_asin_title. Best Sump pump ever...Worth every penny.!!

## Features

- Indoor Use Only - This 1/3 HP WAYNE basement sump pump is perfect to keep your basement dry during heavy water flow. Whether it’s rain, snow melting, etc. WAYNE model CDU790 can pump up to 4,600 GPH to keep your basement dry.
- Tough And Durable - Corrosion-resistant epoxy coated steel motor housing and stainless steel fasteners come with a cast-iron volute that provides long life in tough sump pump applications.
- Efficient Design - The top suction design eliminates air lock and minimizes clogging from any debris in the bottom of the sump pit. Easy to install in about 15 minutes with no need to drill a weep hole!
- Quality You Deserve - Proudly assembled in the USA for quality you can trust. Warrantied for 3 years for dependable, efficient, & ultra-quiet performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002YVQA2 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #5,960 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4 in Sump Pumps |
| Brand | Wayne |
| Certification | Fully submersible |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (7,953) |
| Date First Available | June 15, 2006 |
| Global Trade Identification Number | 00040066100016 |
| Horsepower | 0.3 Horsepower |
| Included Components | Pump |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 16.4 pounds |
| Item model number | CDU790 |
| Manufacturer | Wayne Water Systems |
| Material | Cast Iron |
| Maximum Flow Rate | 63 Gallons Per Minute |
| Number Of Pieces | 1 |
| Part Number | CDU790 |
| Power Source | Corded Electric |
| Product Dimensions | 10.5"L x 9"W x 11"H |
| Size | 1/3 HP |
| Specific Uses For Product | water pumpping |
| Style | 1/3 HP Coated Steel Sump Pump |
| UPC | 040066100016 784644738467 783324962109 |
| Voltage | 120 Volts |
| Warranty Description | 3 Year Limited |

## Product Details

- **Brand:** Wayne
- **Color:** Black
- **Horsepower:** 0.3 Horsepower
- **Item Weight:** 16.4 Pounds
- **Material:** Cast Iron
- **Maximum Flow Rate:** 63 Gallons Per Minute
- **Power Source:** Corded Electric
- **Product Dimensions:** 10.5"L x 9"W x 11"H
- **Style:** 1/3 HP Coated Steel Sump Pump
- **Voltage:** 120 Volts

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/71tKDT6EpzL.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

### ⭐⭐⭐⭐⭐ Horror Story with a Happy Ending Courtesy of Wayne Sump Pump!
*by T***K on June 24, 2016*

I recently purchased a 95% gut renovation in Chicago. The plumbing work that was done is phenomenal, so I was extremely surprised to find a 1/2 inch of water in half of my newly finished basement after our first flash flood rain of the summer last month. I pulled the sump basin lid off and sure enough, it completely full. I fished around in the water with my hand until I found float and wiggled it around a few times which finally triggered the pump to turn on. It drained the basin and drained the water that had backed in the inlet pipes, leaving me to push all of the standing water floor drain and spend a few days cleaning up the mess. When it rained again that weekend, I immediately went down to the basement and sure enough, I watched the basin fill quickly, but the float didn't trigger pump again, so there I sat on the floor in the utility room, for 3 hours in the middle of the night, hitting the float with a piece of wood every 5 minutes to turn the pump on. Once it stopped raining, I pulled the pump out, which is when I learned it was a Flotec FPZS33T model. I disassembled the float switch, cleaned all of the contacts, reassembled the switch, checked all of the seals, cleaned the intake, and put the pump back in the basin. I ran my garden hose into basin, and successfully triggered the float switch. I was feeling pretty satisfied with my handy work. Problem solved right? Wrong. We got through two more decent rains without any problems. The pump seemed to be working well. On Wednesday night (two days ago), the entire Chicagoland area was under Flash Flood and Tornado warnings. When the rain started, I went down to the basement and everything seemed good. After about 20 minutes, I went back down to the basement and noticed that basin was 2/3 full, but the pump was still running full tilt because I could not only hear it, but I could hear the water moving through the discharge pipe. I sat there for the next 20 minutes and watched the basin slowly fill to capacity, backing up the inlet pipes yet again. Within an hour of the rain starting, I had water beginning to pool on the floor again, not as badly as the first time because the pump was actually on, but bad enough to really tick me off. This pump was less than a year old, and it already had a faulty switch and completely failed to keep pace with a regular summer thunder storm! I ordered a Wayne CDU980E 3/4 horsepower sump pump on Amazon with overnight delivery. The pump came by noon yesterday. I had it installed in 15 minutes because the fittings and pipe lengths were a perfect match. I tested it and it ran great. Last night we had another torrential downpour and new pump worked like a champ! This thing didn't even break a sweat, and it is actually a bit quieter than the other pump to boot! I'm very satisfied. Great product and incredibly easy to install! The Wayne pump only cost $30 more than the Flotec pump and it is a much better design and WAY me powerful. I'll monitor the performance over the summer and post back if anything changes. The good news for Flotec is that I might not throw their garbage pump away immediately. I'm thinking of making an outdoor basin that catches rainwater from my gutter downspout and then pump it into a larger catchment in my garden to use for watering my plants. So yeah, this pump will spend the remainder of its life in my garden, moving rainwater for my vegetables, but I will never allow it near my home ever again!

### ⭐⭐⭐⭐⭐ Best fastest most powerful pump EVER!!!!
*by C***T on November 4, 2025*

This pump is better than what I imagined it could be. The pump that I used for 20 years failed a few months ago and it would take 25 minutes to empty my hot tub which holds two hundred 30 gallons. I bought this new beast and hooked it up and it took less than 5 minutes to empty my hot tub. Remember to order the appropriate hose with it. As I was doing my research it seemed as though none of the hot tub manufacturers remind you that you need to purchase an exit hose This sump pump has an inch and a half throat at the exit So I did my research and watched a bunch of videos and realized that I had to buy an exit hose with a 1 1/2 inch thread. it went together perfectly and it works like an absolute charm if you need to know which hose to get with this it is the Drainage Industries Dischrg Hose 1.5x1.5x24' https://www.amazon.com/dp/B06XS5TMDD?ref=ppx_yo2ov_dt_b_fed_asin_title. Best Sump pump ever...Worth every penny.!!

### ⭐⭐⭐⭐⭐ 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 Seychelles*
*Store origin: SC*
*Last updated: 2026-03-02*