Why Winterizing Matters

Cold temperatures can cause serious damage to your pressure washer. Water left in the pump, hoses, or unloader can freeze, expand, and crack critical components. Proper winterization prevents costly repairs and ensures your washer is ready to go in the spring.

Step 1: Turn Off and Disconnect

• Power off your washer and disconnect it from any water source.
  
  
• Release pressure by pulling the trigger on the gun until no water comes out.
  
  
• Remove hoses and accessories to prevent water from freezing inside them.
  
  

Step 2: Drain the System

• Open the pump and remove any remaining water.
  
  
• Drain hoses, spray guns, and wands completely.
  
  
• Tip: Flipping hoses or gently blowing air through them can help remove stubborn water.
  
  

Step 3: Use Pump Saver or Antifreeze

• Pump saver: Injecting a small amount of pump-protectant or antifreeze into your pump is the safest way to prevent freezing and corrosion.
  
  
• Follow the manufacturer’s instructions for the correct amount.
  
  
• Run the trigger briefly to ensure the fluid circulates through the system.
  
  

Step 4: Clean and Store Accessories

• Remove any nozzles, wands, and chemical injectors.
  
  
• Clean thoroughly and store in a dry, safe location.
  
  
• This step prevents rust and keeps your parts ready for next season.
  
  

Step 5: Store Your Pressure Washer Properly

• Keep your washer in a dry, insulated area if possible.
  
  
• Elevate it off the ground to prevent moisture buildup.
  
  
• Cover your machine with a tarp or protective cover to keep dust and debris off.
  
  

Pro Tips for Long-Term Protection

• Flush your chemical injector lines if you used detergents to prevent residue buildup.
  
  
• Check the owner’s manual for any model-specific winterization steps.
  
  
• Maintenance: This is a good time to inspect hoses, O-rings, and nozzles for wear and replace them if needed.
  
  

Cautions and nuances:

• Hot water washers: Make sure any coil, burner, or other hot water components are also drained or protected.

• Automotive antifreeze: Should not be used in the pump, it can damage seals. Only use a product labeled safe for pressure washer pump protection.

• Long-term storage outdoors: Not recommended; even with pump saver, extreme cold can be risky.

Why Choose American Pressure Inc.

We offer a variety of pressure washer products, accessories, and winterization supplies to keep your equipment safe year-round. From pump protectors to chemical injectors, our team can help you get your system ready for winter and ensure it lasts for years. Visit AmericanPressureInc.com to explore our full selection of products and support.

Frequently Asked Questions (FAQ)

Q: Can I store my pressure washer outside in winter?
A: It is not recommended. Freezing temperatures can damage your pump, hoses, and internal components. If outdoor storage is unavoidable, use pump saver or antifreeze and cover the machine completely.

Q: Do I need to winterize a hot water pressure washer differently?
A: Hot water units have additional components, like coil and burner systems. Always refer to the manufacturer’s manual and use pump saver to protect all internal components.

Q: How often should I winterize my pressure washer?
A: Every year before freezing temperatures arrive. Proper yearly winterization helps extend the life of your washer and prevents costly repairs.

Q: Can I use regular antifreeze in my pump?
A: No. Only use pump protectant or non-toxic antifreeze designed for pressure washers. Automotive antifreeze can damage seals and components.

About American Pressure Inc.

American Pressure Inc., based in Robbinsdale, Minnesota, serves both businesses and everyday customers with all their pressure washing and cleaning needs. We offer pressure washer equipment, accessories, and custom solutions, helping our customers get the job done safely, efficiently, and effectively. Web orders ship across the United States, and our knowledgeable team is always ready to guide you through product selection, maintenance tips, and custom setups to keep your equipment running strong year-round.