Introduction
The Stanley SL18115P Wet/Dry Vacuum is a versatile 5-gallon, 4-horsepower unit designed for both wet and dry cleaning tasks. Its robust motor provides strong suction for various applications, from household spills to garage debris. This manual provides essential information for the safe and effective operation, setup, and maintenance of your vacuum.

Image: The Stanley SL18115P Wet/Dry Vacuum, showcasing its compact design with the hose and floor nozzle attached.
Product Features
- 5-gallon Poly container for ample capacity.
- 4.0 peak HP motor providing strong airflow for efficient cleaning.
- Rear blower port for versatile blowing functions.
- 10-foot power cord with built-in cord wrap for convenient storage.
- Swiveling casters for enhanced mobility and ease of movement.
- Includes a variety of accessories: 1 1/4-inch x 5-foot hose, two extension wands, crevice nozzle, gulper nozzle, floor brush, foam filter, cloth bag with clamp ring, and dust bag.

Image: All included accessories for the Stanley SL18115P Wet/Dry Vacuum, laid out for clear identification.
Setup Instructions
- Unpack Components: Carefully remove all parts from the packaging. Verify that all listed accessories are present.
- Attach Casters: Insert the swiveling casters into the designated slots on the bottom of the vacuum container. Ensure they click securely into place for stable movement.
- Filter Installation:
- For Dry Vacuuming: Install the cloth bag with the clamp ring or the disposable dust bag onto the filter cage inside the tank. Ensure it is properly seated to prevent dust from entering the motor.
- For Wet Vacuuming: Remove any dry filter bags. Install the foam filter over the filter cage. This filter is designed for wet pickup and protects the motor from liquids.
- Attach Hose: Connect the 1 1/4-inch x 5-foot hose to the intake port on the front of the vacuum. Twist to secure.
- Attach Accessories: Select the appropriate accessory (extension wands, crevice nozzle, gulper nozzle, or floor brush) and attach it to the end of the hose.

Image: The vacuum's top handle features a convenient cord wrap for organized storage.
Operating Instructions
Dry Vacuuming
Ensure the correct dry filter (cloth bag or disposable dust bag) is installed. Connect the hose to the front intake port. Plug the power cord into a suitable electrical outlet. Press the yellow power button on top of the unit to turn it on. Use the appropriate nozzle for your cleaning task, such as the floor brush for carpets or the crevice nozzle for tight spaces.

Image: The vacuum is designed for easy movement, making carpet cleaning efficient.

Image: Demonstrating the strong suction of the vacuum for cleaning upholstery.

Image: Various nozzles, including the crevice and gulper nozzles, for different cleaning needs.
Wet Vacuuming
Before wet vacuuming, ensure all dry filter bags are removed and the foam filter is properly installed over the filter cage. Connect the hose to the front intake port. Plug in the vacuum and turn it on. Use the gulper nozzle or floor brush to pick up liquids. The vacuum will automatically shut off when the liquid reaches a certain level to prevent overflow.

Image: The vacuum effectively cleans up liquid spills on hard surfaces.
Blower Function
To use the blower function, disconnect the hose from the front intake port. Connect the hose to the rear blower port on the vacuum. Turn on the unit. The vacuum will now function as a powerful blower, ideal for clearing debris from patios, driveways, or workshop areas.
Video: Demonstration of the Stanley Wet/Dry Vacuum's effective blowing function, clearing debris from a floor.
Video: Overview of the Stanley Wet/Dry Vacuum, highlighting its blower function suitable for home, garage, and pet hair cleanup.
Maintenance
Regular maintenance ensures optimal performance and extends the life of your Stanley Wet/Dry Vacuum. Always unplug the vacuum before performing any maintenance.
- Emptying the Tank: After each use, especially wet pickup, unlatch the top and empty the contents of the tank. Clean the inside of the tank with a damp cloth.
- Filter Cleaning/Replacement:
- Dry Filters: Shake off excess dust from the cloth bag or dispose of the dust bag. Replace disposable bags as needed. Reusable cloth bags can be washed and air-dried.
- Foam Filter: Rinse the foam filter with water after wet use. Allow it to air dry completely before re-installing or storing.
- Hose and Accessory Cleaning: Clear any blockages from the hose and accessories. Wash them with water if necessary and allow them to dry.
Video: A brief demonstration of the Stanley Wet/Dry Vacuum, including a view of its internal components for maintenance.
Troubleshooting
If your Stanley Wet/Dry Vacuum is not performing as expected, consider the following common issues:
- No Suction/Weak Suction:
- Check for blockages in the hose, nozzles, or intake port.
- Ensure the filter is clean and properly installed. A clogged filter can significantly reduce suction.
- Verify that the tank lid is securely latched. Air leaks will reduce suction.
- For wet pickup, ensure the foam filter is not saturated or clogged.
- Motor Not Starting:
- Check if the power cord is securely plugged into a working electrical outlet.
- Ensure the power button is fully pressed to the "ON" position.
- For wet pickup, the automatic shut-off may have activated if the tank is full. Empty the tank.
- Unusual Noise:
- Inspect the hose and accessories for any foreign objects that may be causing obstruction or rattling.
- Ensure the motor head is properly seated and latched onto the tank.
For persistent issues not resolved by these steps, please refer to the detailed troubleshooting section in the full user manual or contact Stanley customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | STANLEY |
| Model Name | SL18115P |
| Capacity | 5 Gallons |
| Motor Horsepower | 4 Horsepower |
| Airflow | 85 CFM |
| Hose Length | 5 Feet (1 1/4-inch diameter) |
| Power Cord Length | 10 Feet |
| Voltage | 120 Volts |
| Amperage | 10 Amps |
| Noise Level | 80 dB |
| Product Dimensions | 12.5"L x 12.5"W x 18"H |
| Item Weight | 11.86 pounds |
| Material | Plastic+Metal (Polypropylene finish) |
| Special Feature | Corded, Bagged (Wet/Dry/Blower Function) |
| Filter Type | Cartridge (Foam for wet, Cloth/Dust bag for dry) |
| Country of Origin | China |
Warranty & Support
The Stanley SL18115P Wet/Dry Vacuum comes with a 1-year limited warranty. For warranty claims, technical support, or replacement parts, please contact Stanley customer service. Keep your proof of purchase for warranty validation.
Important Safety Information: Keep away from fire. Operates at 1200 watts, 120 volts.