6 Best Sprayer Storage Solutions for Winter
Proper winterizing is key to sprayer longevity. Discover our top 6 storage solutions to prevent costly freeze damage and protect your valuable equipment.
A cracked pump housing on your sprayer is one of the most frustrating discoveries on that first warm spring day. It’s a completely avoidable expense caused by a few drops of water left in the wrong place during a hard freeze. Winterizing your sprayer isn’t just a chore; it’s cheap insurance that guarantees you’re ready to go when your orchard or garden wakes up.
Disclosure: As an Amazon Associate, this site earns from qualifying purchases. Thank you!
The First Step: Thorough Sprayer Cleaning
Before you even think about where to store your sprayer, you have to get it perfectly clean. Any chemical residue left in the tank, lines, or pump can crystallize, clog nozzles, or degrade seals over the winter. This isn’t just about freeze protection; it’s about the long-term health of your equipment.
The process is simple but non-negotiable: triple-rinse the tank with clean water, running the pump each time to flush the lines, wand, and nozzle. Remove and scrub any inline or nozzle filters separately. A sprayer put away dirty is a problem waiting to happen in April, regardless of how well you protected it from the cold.
Using Fimco Tank Neutralizer Before Storage
Even after a thorough rinse, microscopic chemical residues can cling to the inside of your tank and components. These residues can be surprisingly corrosive over a long winter layoff. A tank neutralizer is the final step to ensure your sprayer is truly inert.
Think of it as a deep clean. After your initial water rinses, you run a solution of a product like Fimco Tank Neutralizer through the entire system. It deactivates any lingering herbicides or pesticides, preventing them from causing damage or contaminating your first spray next season. A final flush with clean water, and you can be confident the sprayer is as clean as it can be.
Storing in a Workshop with a Mr. Heater Unit
The simplest way to prevent freeze damage is to ensure the temperature never drops below freezing. If you have an insulated workshop or a well-sealed small barn, a modest heat source can create a safe zone for your sprayer and other sensitive equipment. It’s the most straightforward solution.
A small propane unit like a Mr. Heater Buddy, used judiciously, can keep a space above 32°F (0°C) without breaking the bank on fuel. This method’s biggest advantage is its simplicity. There’s no need to drain every last drop or use antifreeze if the ambient air itself is your protection. The tradeoff is the ongoing fuel cost and the need to monitor the space during extreme cold snaps.
Using Camco RV Antifreeze for Pump Protection
For those of us storing sprayers in a truly cold, unheated barn or shed, RV antifreeze is the gold standard. This is the single best method for protecting the pump, which is the most expensive and vulnerable component. It’s cheap, effective, and easy.
After cleaning and draining the sprayer as much as possible, pour about a half-gallon of non-toxic pink RV antifreeze (like Camco’s) into the tank. Run the pump just long enough for the pink fluid to spray from the nozzle. This displaces any remaining water in the pump manifold and lines, replacing it with a liquid that won’t freeze and crack the housing. Never use automotive antifreeze; it is toxic and will destroy your pump’s seals.
Full Disassembly of Your Chapin ProSeries Sprayer
For smaller backpack or handheld sprayers, a completely free and effective method is full disassembly. If there is absolutely no water in the system, there is nothing to freeze. This approach turns a storage task into a valuable annual maintenance session.
Models like the Chapin ProSeries are designed to be taken apart easily. Remove the wand and hose, take the pump assembly apart, and pull out any gaskets or check valves. Lay all the pieces on a workbench to air dry completely for a day or two before storing them in a labeled bin. It takes more time upfront, but it guarantees protection and forces you to inspect for worn parts.
Building a Box with Owens Corning Foamular Board
Sometimes you don’t have a heated space, but you can create a small one. Using rigid foam insulation board, you can build a custom, insulated box that fits right over your sprayer. This is a fantastic low-cost solution for protecting equipment in an otherwise cold building.
Get a sheet of 1- or 2-inch Owens Corning Foamular (the pink board) or a similar XPS foam product. Cut it to size with a utility knife and use foil tape to assemble a five-sided box. On the absolute coldest nights, placing a single 60-watt incandescent bulb or a seedling heat mat inside can provide just enough warmth to keep the pump body above freezing. It’s an ingenious way to create a protective microclimate.
Gladiator GearTrack Racks in a Heated Garage
If you have a heated garage, your primary challenge shifts from temperature to organization. Getting your sprayer up off the floor is key. A wall-mounted storage system like Gladiator GearTrack is an excellent way to keep your equipment safe, organized, and out of the way.
Using heavy-duty hooks, you can hang the entire sprayer unit on the wall, preventing it from being tripped over or damaged. Baskets and smaller hooks can hold the wand, extra nozzles, and cleaning tools. This isn’t just about storage; it’s about creating a dedicated, organized "sprayer station" that makes you more efficient year-round.
Using a Zerostart Engine Heater on the Pump Body
For larger 12-volt or PTO-driven sprayers with substantial metal pump bodies, heating an entire barn is impractical. The solution is to apply heat directly where it’s needed most. A small, magnetic engine block heater provides targeted, efficient protection for the pump itself.
A product like a Zerostart engine heater can be attached directly to the pump’s metal housing. Plug it into a thermostat-controlled outlet that only turns on when temperatures approach freezing. This uses a tiny amount of electricity but delivers powerful protection to the most critical component, leaving the rest of the sprayer to fend for itself—which is fine, as the tank and hoses are far more resilient.
Protecting your sprayer through the winter isn’t about finding one perfect method, but about choosing the right strategy for your equipment and your storage situation. Whether you use heat, antifreeze, or simple disassembly, a little work in the fall pays off. It ensures that when spring arrives, you’re ready to spray, not shop for replacement parts.
