WAYNE CDU800 Submersible Sump Pump 1/2 HP
- 1/2 HP submersible, cast iron and steel
- 85 gpm flow, 5,100 gallons per hour
- 20 feet maximum lift
- Vertical float switch, top suction
- 12 pounds, 9 x 9 x 12 inches
- 3 year manufacturer warranty
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A submersible basement sump pump with a top suction intake made to resist clogging. The listing shows an unusual voltage figure, so confirm the plug and circuit before installing.
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ASIN: B0002YVPQWModel: CDU800Category: Sump Pumps
Overview
A vertical float switch rises with the water in the pit and starts the motor on its own, then shuts it off when the level drops. Water enters through the top suction inlet, and the housing mixes cast iron with corrosion resistant steel.
Automatic operation and a durable housing make this a set-and-forget unit for a basement pit. The limit is detail on the electrical side, since the listing voltage looks unusual and the cord length is not stated.
Who it's for
Homeowners protecting a finished basement or crawlspace from groundwater. Properties with a deep pit or very long discharge run should compare the lift rating, and sewage or effluent use is outside the listed purpose.
Pros and cons
- Automatic vertical float switch
- Top suction design
- Cast iron and steel build
- Compact enough for a small pit
- Cord length not listed
- Listed voltage looks unusual
- Discharge size not listed
- Basement water use only
Performance notes
Flow rate and lift height decide how fast the pit empties, and both fall as the discharge pipe gets longer or rises higher. The float switch controls start and stop, so it needs a pit wide enough to swing freely. Top suction draws from the upper water layer, which helps avoid pulling in settled debris.
Specifications
| Brand | Wayne |
|---|---|
| Model | CDU800 |
| Dimensions & fit | |
| Maximum Lifting Height | 20 feet |
| Item Dimensions L X W X H | 9 x 9 x 12 inches |
| Item weight | 12 pounds |
| Capacity & performance | |
| Flow Rate | 85 gpmhigher than 100% of 23 sump pumps |
| Power & efficiency | |
| Horsepower | 1/2 HP |
| Power Source | Corded electric |
| Voltage | 100 voltslower than 87% of 24 sump pumps |
| Construction & materials | |
| Material Type | Cast iron and steel |
| Color | Black |
| Included components | |
| Included Components | Unit Instruction Guide |
| Unit Count | 1 Count |
| Warranty & support | |
| Manufacturer Warranty Description | 3 years |
| Other details | |
| Specific Uses For Product | Basement water removal |
| Item Type Name | Sump Pump |
Closest rivals on specs
Basement Watchdog Big Dog Battery Backup Sump Pump- Maximum Lifting Height 20 vs 10 feet (+100%)
Multiquip ST2037 Electric Submersible Pump 1 HP- Flow Rate 85 vs 73 gpm (+16%)
- Maximum Lifting Height 20 vs 37 feet (-46%)
Basepump RB750 Water-Powered Backup Sump Pump- Flow Rate 85 vs 15 gpm (+467%)
- Maximum Lifting Height 20 vs 15 feet (+33%)
Frequently asked questions
How much water does the Wayne CDU800 move?
The listing gives 85 gpm and describes up to 5,100 gallons per hour.
How high can the Wayne CDU800 pump water?
The listed maximum lifting height is 20 feet.
Is the Wayne CDU800 for sewage?
No. The listed use is basement water removal, and the listing does not describe handling sewage or solids.
What comes with the Wayne CDU800?
The listing names the unit and an instruction guide.