Backpack Sprayer: How to Use It In the Proper Way

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Before delving into the proper way to use your backpack sprayer to ensure effective and durable results, it is important to provide an overview of the sprayer components for those who are not very familiar with it and to clarify further the use process later on.

Backpack Sprayer Components

Shoulder Straps/ Harness

What makes a backpack sprayer distinctive and easier to use compared to the other sprayer types is its effective portability. You can carry it on your back while using your hands to distribute the spray.

For this, any backpack spray comes with shoulder straps or harnesses to make the sprayer easier to carry on the back resulting in less pressure by evenly distributing the weight across the back and shoulders.


The tank is the main part of the backpack sprayer. It is where the liquid is stored. Since the liquid can add quite a huge weight to the sprayer making it unbearable to carry around for users, the tanks are made lighter on purpose using mainly good quality plastics for durability. Tanks on average come in sizes of 2 to 4 gallons.


The pump is a small device in the sprayer mainly works on moving liquid to a cell keeping it under pressure using valves and seals. Once the user sequize the pump lever, the liquid is released via the nozzle. In general there are two broad pump types, a diaphragm pump and a piston pump.


A wand is a thin, light-weight rod. It has a long shaft allowing you to spray in far reached areas where normally you cannot easily spray those using manual sprayers.

The wand moves the liquid inside the pump to be released later through the nozzle.


Okay, here we come to the instrumental component of the sprayer. The liquid is released through the nozzle making it the part which controls the speed, flow, and type of the spray. For this purpose, the nozzle comes in different types serving different objectives. It can be narrow, wide, cone, fan, coming with an even, direct, or adjustable stream.

PSI Pressure

The PSI pressure refers to the pressure used in the sprayer. On average the sprayer has 15 to 95 psi of pressure. However, you can find sprayer with up to 150 psi pressure if you are looking for a rather professional operation sprayer.

How to Use Your Backpack Sprayer Properly

Many spray users think having the most premium and user-centric backpack sprayer will 100 percent ensures effective results, which is not far away from the truth. Yet, also the way you handle and use your sprayer can make or break your results. This is why it is crucial to know how to properly use your backpack sprayer.

1-Choosing the Right Nozzle

The proper sprayer use starts even before purchasing. Meaning, before rushing to buy a backpack sprayer, it highly important to consider what type and pattern of sprayer you are looking for to reach your desired results.

As mentioned earlier, the nozzle controls the spray flow and pattern. With that being said, you may have the most expensive and effective sprayer in your hand yet with the wrong nozzle for your needs. So think twice before opting for any nozzle sprayer.

Also Read: Backpack Sprayer- 11 Tips for Pesticide Spraying

2-Assemble It the Right Way

Now you have decided what nozzle is suitable for your spraying needs, and the backpack sprayer is by your door just waiting for you to use. Yet, the thing is not all the sprayers come assembled, some come as separate parts, and you need to do the job to make it into a sprayer.

Here comes the tricky part, if you do not rely on the manual and assemble your sprayer the proper way, you may end up damaging it. To summarize the assembling process, here are the main four steps:

  • First you have to attach the wand to the spray gun relying on a screw.
  • Second you need to place the pump handle into the right hole.
  • Third you need to attach and secure the shoulder straps or harness.
  • Finally before using the sprayer, you have to make sure all parts are securely attached.

3-The Liquid Part!

Now you have your sprayer ready for use, it means it is time for the liquid. Mainly, you have four steps to have the substance ready to use:

  • Deciding on the type of liquid you will use. Here it is important to choose a liquid suitable for the spray tank. Meaning if you have opted for a cheaper sprayer, a corrosive liquid may wreck it.
  • Calculating the liquid amount for spraying. For this there are two main methods you can follow. You can calculate the liquid amount according to the label directions, or you can calculate it relying on the substance concentration. The choice is yours to make here.
  • Preparing the liquid: it is important to wear a safe outfit for this step, prepare it in a separate container, and using water to mix if needed.
  • Pouring the liquid, it is a tricky step since you have to carefully pour the liquid into the tank avoiding any leakage since it can result in hurting your skin with chemicals.

4-Using Effective Safety Measures

It is important to be careful, diligent, and vigilant about protecting yourself and your skin from any potential contact with the chemical substances. This is why you have to follow a few simple safety measures:

  • Wear the right protective overalls equipment whether while preparing the liquid or while spraying.
  • While spraying, it is highly advisable to walk backwards instead of forwards. This why you avoid stepping on any sprayed chemicals.
  • Use a longer attached lance into the sprayer to make sure the liquid is far away from your face.

5- The Right Care and Maintenance

Finally, it is highly important to take care of the sprayer after using it. It is advisable to clean its parts thoroughly on a regular basis.

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