Introduction
Thank you for choosing the Vacmaster Professional VDK811PW 8 Gallon 4.5 Peak HP Wet/Dry Vac. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new wet/dry vacuum cleaner. Please read all instructions carefully before use and retain this manual for future reference.

Image: Vacmaster Professional VDK811PW 8 Gallon Wet/Dry Vac with hose and floor nozzle attached.
Important Safety Instructions
When using an electrical appliance, basic precautions should always be followed, including the following:
- Read all instructions before using this wet/dry vacuum.
- Do not leave appliance when plugged in. Unplug from outlet when not in use and before servicing.
- Do not use outdoors or on wet surfaces.
- Do not allow to be used as a toy. Close attention is necessary when used by or near children.
- Use only as described in this manual. Use only manufacturer’s recommended attachments.
- Do not use with damaged cord or plug. If appliance is not working as it should, has been dropped, damaged, left outdoors, or dropped into water, return it to a service center.
- Do not pull or carry by cord, use cord as a handle, close a door on cord, or pull cord around sharp edges or corners. Do not run appliance over cord. Keep cord away from heated surfaces.
- Do not unplug by pulling on cord. To unplug, grasp the plug, not the cord.
- Do not handle plug or appliance with wet hands.
- Do not put any object into openings. Do not use with any opening blocked; keep free of dust, lint, hair, and anything that may reduce air flow.
- Keep hair, loose clothing, fingers, and all parts of body away from openings and moving parts.
- Do not pick up anything that is burning or smoking, such as cigarettes, matches, or hot ashes.
- Do not use to pick up flammable or combustible liquids, such as gasoline, or use in areas where they may be present.
- Do not use without dust bag and/or filters in place.
- Turn off all controls before unplugging.
- Use extra care when cleaning on stairs.
- Use only proper grounding outlets.
Package Contents
Verify that all components listed below are included in your package. If any parts are missing or damaged, please contact customer service.
- Vacmaster Professional VDK811PW Wet/Dry Vac Unit
- 1-7/8-inch x 7-foot EVA Hose
- 2 Extension Wands
- Floor Brush/Squeegee Nozzle
- Utility Nozzle
- Crevice Tool
- Dust Brush
- Car Nozzle
- Dust Bag
- High Efficiency Cartridge Filter
- Foam Wet Filter

Image: All included accessories for the Vacmaster Professional VDK811PW.
Setup and Assembly
1. Attaching the Wheels
- Invert the vacuum canister.
- Insert the caster wheels into the designated slots on the base of the canister until they click securely into place.
- Ensure all wheels rotate freely.
2. Filter Installation
The type of filter required depends on whether you are performing dry or wet vacuuming.
For Dry Vacuuming:
- Install the High Efficiency Cartridge Filter over the filter cage, ensuring a snug fit.
- Place the Dust Bag over the intake port inside the canister, securing it with the cardboard collar.
- Do NOT use the Foam Wet Filter for dry vacuuming.
For Wet Vacuuming:
- Remove the High Efficiency Cartridge Filter and Dust Bag.
- Install the Foam Wet Filter over the filter cage, ensuring it covers the entire cage.
- Do NOT use the High Efficiency Cartridge Filter or Dust Bag for wet vacuuming.
3. Attaching the Hose and Accessories
- Insert the large end of the hose into the vacuum's intake port on the canister and twist to lock it securely.
- Attach desired accessories (e.g., extension wands, floor nozzle, crevice tool) to the other end of the hose.
Operating Instructions
1. Dry Vacuuming
- Ensure the High Efficiency Cartridge Filter and Dust Bag are correctly installed.
- Plug the power cord into a suitable electrical outlet.
- Turn the vacuum ON using the large dust-sealed switch.
- Use appropriate accessories for the task (e.g., floor brush for large areas, crevice tool for tight spaces).

Image: Using the Vacmaster Professional VDK811PW for car interior cleaning.
2. Wet Vacuuming
- Ensure the Foam Wet Filter is correctly installed and the Cartridge Filter and Dust Bag are removed.
- Plug the power cord into a suitable electrical outlet.
- Turn the vacuum ON.
- Use the squeegee nozzle or other appropriate attachment to pick up liquids.
- Do not overfill the canister. The float mechanism will shut off suction when the canister is full. Turn off the vacuum and empty the canister immediately.

Image: Cleaning a liquid spill with the Vacmaster Professional VDK811PW.
3. Blower Function
- Locate the blower port on the vacuum.
- Insert the hose into the blower port and twist to lock it securely.
- Turn the vacuum ON to use it as a blower for clearing debris.

Image: Demonstrating the blower function of the Vacmaster Professional VDK811PW.
Maintenance
1. Self-Cleaning Filter System
The self-cleaning filter system helps maintain optimal suction by preventing clogged filters. To activate:
- While the vacuum is running, press the filter cleaning button located on the motor head.
- This action dislodges dust from the filter, improving airflow.

Image: Activating the self-cleaning filter system.
2. Filter Cleaning and Replacement
- Cartridge Filter: For dry use, tap clean or rinse with water. Allow to air dry completely before re-installation. Replace when damaged or suction significantly decreases.
- Foam Wet Filter: For wet use, rinse with water and allow to air dry.
- Dust Bag: Replace when full or when suction power is reduced.
3. Canister Cleaning
- Empty the canister after each use, especially after wet vacuuming, to prevent odors and mold growth.
- Wipe the inside of the canister with a damp cloth and mild detergent if necessary. Allow to air dry completely.
4. Storage
Store the vacuum and its accessories in a clean, dry place. Utilize the on-board storage features for the hose, cord, and accessories to keep everything organized.

Image: Vacmaster Professional VDK811PW with on-board storage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Vacuum does not start | No power supply Faulty power cord/plug On/Off switch is off | Check power outlet and circuit breaker Inspect cord and plug for damage Ensure switch is in the 'ON' position |
| Loss of suction | Clogged hose or attachment Full dust bag or dirty filter Canister full (wet vacuuming) Loose hose connection | Clear obstruction Empty dust bag or clean/replace filter Empty canister Ensure hose is securely connected |
| Motor runs hot | Blocked airflow Extended heavy use | Check for clogs in hose/filter Allow vacuum to cool down before resuming use |
| Water/dust escapes from exhaust | Improper filter installation Canister overfilled (wet vacuuming) | Ensure correct filter is installed and sealed Empty canister immediately |
Specifications
| Feature | Specification |
|---|---|
| Brand | Vacmaster |
| Model Name | VDK811PW 0201 |
| Capacity | 8 Gallons |
| Motor Horsepower | 4.5 Peak HP |
| Wattage | 1380 watts |
| Amperage | 11.5 Amps |
| Maximum Suction | 84 Inches Water Lift |
| Hose Length | 7 Feet (1-7/8-inch diameter) |
| Cord Length | 10 Feet (approximate, derived from 17ft cleaning reach with 7ft hose) |
| Noise Level | 72 Decibels |
| Filter Type | Cartridge (High-Efficiency), Foam (Wet) |
| Special Feature | Wet/Dry, Self-Cleaning Filter System, Blower Function |
| Product Dimensions | 18.3"L x 15.1"W x 23.2"H |
| Item Weight | 19.4 pounds |
| Indoor/Outdoor Usage | Indoor, Outdoor |
Warranty and Support
For warranty information or technical support, please refer to the warranty card included with your product or visit the official Vacmaster website. You may also contact Vacmaster customer service directly for assistance with product operation, parts, or service inquiries.
Contact Information: Please refer to your product packaging or the official Vacmaster website for the most current contact details.





