All summer you have diligently maintained, calibrated and cleaned out your sprayer.

Good winterizing and storage of your sprayer can ensure that next year when you pull it out of your shop it will function properly.

Here are a few tips that you can use to make winterizing easy.

Rinse
: Prior to storing a sprayer for the winter it needs to be thoroughly rinsed of all pesticide residues. It is better to rinse the sprayer several times with a small amount of clean water than to fill it up only once.

Dispose of the rinsate in a field that has proper setbacks from all water sources. Do not allow the rinsate to accumulate into puddles. It is preferable to rinse the sprayer on an impervious surface where the rinsate can be collected and taken to a Clean Sweep site.

At this time make sure all water is drained out of the sprayer so no damage is caused by water freezing.

Once the inside of the tank is cleaned out do not forget about the outside of the sprayer. The outside should be rinsed with clean water and if at all possible on an impervious surface and the rinsate collected.

Always remember to read the label of the pesticide used and use appropriate personal protective equipment when cleaning.

Clean
: Once you have the tank properly rinsed the next step is to decontaminate it. You can purchase commercial cleaning agents or you can clean your system with some common household products. For a chart of the product and amount that you should use consult “Maintenance, Cleaning and Storage of Ground Sprayers” Montana State University Extension Bulletin number MT198917AG.