Unboxing & First Using your Sprayer

Unbox, Assemble, and Set Up Your New Sprayer the Right Way

Avoid Common Mistakes, Ensure Peak Performance, and Protect Your Investment

When you receive a brand-new sprayer - whether it’s a knapsack, compression, or electric model - the best practice is simple: unbox carefully, read the manual, assemble properly, and test with water before your first real use. But let’s be honest, most of us skip a few steps.

If you’ve ever torn into a box, skipped the instructions, and gone straight to filling with chemicals, you're not alone. Many of our customers admit doing the same. However, rushing the setup can result in leaks, poor performance, or even long-term damage to your sprayer or accessories.

So, here’s a practical guide with key tips and reminders to make sure your sprayer works perfectly from the very first use.


1. Open the Box With Care

Be gentle

It might be tempting to use a knife or box cutter, but be cautious. Many sprayers are packed tightly with coiled hoses or loose parts close to the surface of the packaging. A sharp blade could easily cut into a hose or scratch a component.

Pro Tip: If you do use a knife, only cut the tape at the box seams and lift flaps away from the contents.


2. Check and Confirm All Parts Are Present

Before you start building, make sure you have everything listed in the parts checklist (found at the beginning of the instruction manual). Some smaller parts like seals, nozzles, or fittings may be stored inside the sprayer tank, so be sure to check there.

Missing a part? This can happen as sprayers are quality checked before they leave the factory - but don’t worry, contact us right away and we’ll get it sorted quickly.


3. Don’t Skip the Manual

We know, it’s not the most exciting read. But your sprayer manual contains important information beyond just assembly:

  • How to assemble correctly

  • Recommended maintenance tips

  • Troubleshooting guidance

  • Pressure and flow rate specifications

  • Warranty and support info

Even if the sprayer seems easy to build, reading the manual could save you hours down the line, especially when it comes to cleaning or storing the unit.


4. No Tools Needed (Unless Stated)

For most manual sprayers, especially Mesto backpack and compression models, you won’t need tools for assembly. If tools are required (usually only with larger electric sprayers), the manual will clearly say so.

Using pliers or wrenches unnecessarily can damage connectors or over-tighten threads. Hand-tight is almost always sufficient.


5. Straighten the Hose Before Use

The sprayer hose has likely been tightly coiled since production. This can cause stiffness or unwanted kinks, especially in colder weather. Before connecting, gently unroll the hose, lay it flat, or run warm water through it to help it relax and straighten.

This step:

  • Makes connections easier to secure

  • Reduces the risk of cross-threading

  • Improves handling during your first use


6. Secure All Connections (And Double Check Them)

Before adding liquid, ensure all threaded connections, from hose to tank, trigger to lance, are hand-tightened and secure. Misaligned threads or loose connections are the most common causes of leaks during first-time use.

Tip: Straightening the hose first helps relieve tension that can accidentally pull on connectors during operation.


7. Test With Water First, Not Chemicals

Never skip this step.

Use clean water only for your first test spray. It’s the safest way to:

  • Spot leaks or loose connections

  • Get a feel for the pressure, spray pattern, and ergonomics

  • Test accessories like nozzles, telescopic lances, or booms

  • Practice safe handling and trigger use

Why risk spraying expensive (or hazardous) chemicals if something isn’t quite right?


8. Learn the Equipment Before You Need It

Using a new telescopic lance, multi-nozzle boom, or constant flow valve? Take a few minutes to familiarise yourself. Watch our setup videos, or give our team a call if you need advice. That short learning curve will pay off with better results and fewer headaches.


Take 10 Minutes to Save Hours Later

Following these simple but essential steps will ensure:

  • A smoother setup process

  • Fewer leaks or surprises

  • Longer lifespan of your sprayer and its components

  • Safer, more effective spraying from day one

We’re passionate about helping our customers get the best from their sprayers—because a well-set-up tool performs better, lasts longer, and helps you work smarter.


Still Have Questions? We’re Here to Help

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