How to Store a Power Washer
Aug 27, 2026 / Public Storage
You can store a power washer in a storage unit once it’s clean, dry, and free of gasoline, oil, and other hazardous fluids. A little prep helps protect the pump and hoses, prevent rust, and keep it ready for next time. Before moving it in, be sure to review your storage facility’s rules on prohibited items.
Quick Storage Tips
- Clean and dry your power washer before storing it.
- Drain all water from the pump, hose, spray gun, and wand.
- Remove gasoline, oil, and other flammable or hazardous fluids.
- Keep it off the floor on a pallet, mat, or shelf.
- Cover it with a breathable cloth to keep dust out.
- For long-term storage, climate control can help reduce humidity exposure.
Get Your Power Washer Ready for Storage
Clean It
Let the power washer cool completely, then wipe away any dirt, mud, or grime. Pay special attention to the nozzle, hose connections, and metal parts. Finish with a dry cloth to help prevent rust.
Drain and Dry the Parts
Disconnect the hose from the spray gun and pump, then drain any leftover water from the hose, spray gun, wand, and pump. Wipe everything dry before storing—especially if cold weather is possible.
Prepare a Gas-Powered Model
Gas-powered models need a little extra attention before storage. Be sure to remove any fuel, oil, and other hazardous fluids, as these items should not be kept in a storage unit.
| Task | Why It Matters |
| Empty the fuel tank or use the manufacturer-recommended fuel-storage procedure before transport | Helps prevent fuel deterioration and reduces safety risks |
| Change the oil if recommended in the owner’s manual | Supports engine maintenance during extended downtime |
| Follow the manufacturer’s instructions for spark plug and engine preparation | Helps protect the engine during long-term storage |
| Verify that no fuel, oil, or other hazardous liquids remain before placing the unit in storage | Storage facilities generally prohibit flammable and hazardous materials |
Important: Drain fuel or run the engine outdoors, away from storage units and ignition sources. Follow your owner’s manual and local disposal guidelines.
Prepare an Electric Model
Electric models are easy to store, just unplug it, drain and dry it completely, and coil the cord separately from the hose. Keep the connections dry and dust-free.
Organize the Storage Unit
Choose a location where the power washer will remain dry and easy to reach. Raise it off the floor using a pallet, rubber mat, shelving, or another stable platform.
| Storage Step | Recommended Approach |
| Position the unit | Keep it elevated and away from potential moisture |
| Store hoses | Coil loosely to avoid kinks |
| Store accessories | Place nozzles, spray guns, and fittings in a labeled bin |
| Protect the machine | Use a lightweight, breathable fabric cover |
| Plan for access | Keep frequently needed accessories near the front of the unit |
Avoid wrapping the power washer tightly in heavy plastic. Plastic can trap moisture and contribute to rust or mildew.
Extra Tips for Long-Term Storage
- Keep cords and hoses separate to prevent tangles and damage.
- Store small parts in clear, labeled containers for quick identification.
- Check the unit periodically to confirm it remains dry and secure.
- Consider climate control for storage lasting several months, particularly in areas with high humidity or major temperature swings.
- Review the owner’s manual for model-specific winterization and maintenance steps.
FAQs
Can I store a gas-powered power washer in a storage unit?
Yes, but it should be cleaned, dried, and prepared so that no gasoline, oil, or other prohibited hazardous fluids remain. Confirm the facility’s rules before storing it.
Do I need to drain the water from my power washer?
Yes. Drain water from the pump, hose, spray gun, and wand to help prevent internal corrosion and potential freeze damage.
Should I cover my power washer while in storage?
Yes. Use a breathable cloth cover or lightweight tarp to protect it from dust. Avoid airtight plastic coverings that can hold moisture against the equipment.
Is climate-controlled storage necessary for a power washer?
It is not always necessary, but it can be beneficial for long-term storage in humid climates or areas with significant temperature changes.
Can I leave accessories attached to the power washer?
It is better to disconnect and dry hoses, spray guns, and nozzles. Store them in a labeled bin or container to protect the parts and make them easier to find later.
