How to clean your backpack sprayer for next use

Views: 132     Author: Raymond Lin     Publish Time: 2019-04-30      Origin: Do it yourself

What you need to prepare

Backpack sprayerDish SoapHot waterBristle brush
Thickened gloves

You just finished your spray operation with your backpack sprayer which leaves two options to you,put it aside or clean it first. You may have been very tired by that time, but you still should not forgot to clean out the liquid inside before leaving. It could take a few extra time to clean after leaving the chemicals in your backpack sprayer for a longer period. Obviously you don't want two chemical interactions for your next time use. So cleaning also is one of the main part of your spray work. 

It's also important to remember where to clean up. Find a safe place to clean you backpack sprayer. Do not dump harmful chemicals down public waterways or ditches because the chemical usually with fatal danger even after dilution.

Step 1 - Preparations

Find a safe place, put on the gloves you have prepared, remove the lid for your backpack sprayer. Do remember remove the battery first if you have an electric sprayer

Step 2 - Dump Remaining Chemicals

Pour out the chemical liquids as much as possible. It is not make sense to waste water to dilute it in this step.

Step 3 - Add Hot Water

Fill you sprayer tank with clean hot water and leave it aside for an hour. Using water as hot as you can get it from the tap should work.According to simple chemical knowledge, hot water can speed up the movement of molecules, so that chemical residues on the barrel walls and corners can be incorporated into the water faster.

Step 4 - Remove Water

After your tank has been sitting at least an hour or longer it is time to dump the water. Have a place that you do this without killing any plant life since the water will have chemical residue. Lock the handle open and let the water run through the wand.

Step 5 - Clean the Wand and Filter

In order to clean out your wand, you will need to refill your tank with hot water. Let the clean water run through the hose and wand. You do not need to be concerned with your sprayer calibration since you are only cleaning out the hose and wand. If you want to turn your backpack sprayer on for this step that would be fine.

Sometimes your filter screen may become clogged, scrub it lightly with a bristle brush.

Step 6 - Rinse the Trigger

The Trigger of your sprayer could have chemicals on it, be sure to rinse it off.


  • This is just a basic easy way to clean out your sprayer. Always remember to follow the instructions in your owner’s manual for cleaning your specific sprayer.

  • Some chemicals you use in the sprayer, such as carbolineum, will require the use of activated charcoal or soda lye to remove them.

  • If you let your sprayer sit for a long period of time with chemicals in it be sure to follow this process 2 or 3 times to remove all chemicals.

  • If it is only going to be a few hours until you use your sprayer again you do not need to clean it out.

  • Never store your backpack sprayer while it still contains chemicals as this can be corrosive and ruin your sprayer.