In many parts of the U.S., the winter months bring cold weather and freezing temperatures, which can significantly slow down or even halt pressure washer operations. Before storing your pump equipment, it’s crucial to take steps to winterize your pressure washer to protect it from the elements and the effects of inactivity.
If you plan to store your equipment for over 30 days and are unsure how to prepare your pressure washer pump for winter so that it functions properly when you retrieve it in the spring, follow these step-by-step instructions.
1. Completely Drain Reservoir
The repeated freezing and thawing that happens during winter can cause any leftover liquids to expand and contract, which could irreparably damage the pump. Make sure to remove all liquids and cleaning solutions from the tank and plumbing. Run the pressure washer for about a minute at the lowest pressure setting and squeeze the trigger to flush out any remaining detergent or water from the lines.
2. Blow Out Plumbing and Hose Lines
Disconnect the spray gun, wand assembly, and high-pressure hoses, allowing any remaining liquid to drain out as much as possible. Even after draining, some fluid may still be present in the plumbing system. Utilize an air compressor to blow out any residual liquid.
3. Rinse the System with Antifreeze
To prevent components from freezing, you can consider flushing the system with a small amount of antifreeze before winter storage. After doing so, remember to once again use an air compressor to blow out any residual fluid.
4. Clean Filters
Take out the pump filters and thoroughly clean any particles or debris from the filter bowl or strainer. Make sure there is no residue accumulating on the metal mesh screen.
5. Clean Nozzles
Remove the nozzles and clean the orifice, ensuring that any buildup or deposits are removed to prevent corrosion.
6. Protect From Rodents Damage
It’s surprising how much damage small rodents can inflict on wiring and other pressure washer parts. Utilize deterrents, traps, or other methods to prevent rodent damage, much like you would safeguard a vehicle stored in a garage.
7. Disconnect the Battery
For battery-powered pump systems, it’s recommended to disconnect the battery to prevent it from completely discharging.
8. Take Extra Steps for Gas-Powered Pumps
For pumps with a fuel system, drain all the gasoline. As an alternative, you can add fuel stabilizer to the tank and run the engine for a few minutes to distribute it throughout the fuel lines. Additionally, disconnect the spark plug wires and replace the spark plugs.
9. Clean Exposed Surfaces
Wipe down all exterior surfaces and crevices with a damp cloth to remove visible dust, debris, and dirt. This helps prevent rust and keeps your pump system and housing looking pristine.
10. Store in a Dry Location
To minimize the risk of corrosion or weather-related damage, store your pressure washer in a clean, dry environment. Consider using a cover to shield it from dust accumulation. Ideally, choose a storage location where temperatures remain above freezing.
11. Follow Pump Manufacturer Recommendations
What could happen if you neglect to properly winterize your pressure washer pump before storing it for an extended period? If not adequately prepared, damage could occur to the internal plumbing, hoses, seals, and other components, potentially leading to pump failure.
Ultimately, the best way to ensure proper storage and maintenance of your pump equipment is to consult your pump manufacturer for their specific recommendations. Generally, battery-powered or electric pressure washers have far fewer maintenance requirements than gas-powered ones. Electric pumps have simpler configurations and fewer parts, meaning there’s less potential for issues.
To see how an electric plunger pump can be integrated into a system, take a look at our visual guide below. For more information about our durable pump solutions for pressure washing and other industries, and to discover how the right pump can save you time and money, contact the pump experts at Pumptec.
