Makita Sprayer

Here’s a solid overview of the Makita 18V Sprayers — what they are, specs, use cases, tips, and what to watch out for when choosing one.

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What Is a Makita 18V Sprayer? Compact and Backpack Models

A Makita 18V sprayer is a battery-powered (cordless) sprayer built to run off Makita’s 18 V battery system (e.g. LXT). Instead of pumping manually, the motor pressurizes the spray, allowing you to spray herbicides, fertilizers, water, pesticides, or other liquids more efficiently.

Makita currently offers at least two models in Australia:

• Makita 18 V 5 L Sprayer, model DUS054Z — a lighter, compact model suited for moderate tasks.
• Makita 18 V 15 L Backpack Sprayer, model DUS158Z — a more substantial backpack unit for larger jobs.

These sprayers come in “skin only” form (tool only — battery and charger sold separately).

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Key Specifications & Features

Here are the most important specs and features for these Makita 18V sprayer models, based on the information available:

Feature	Makita 5 L (DUS054Z)	Makita 15 L Backpack (DUS158Z)
Tank Capacity	5 litres	15 litres
Flow Rate	Up to 0.45 L/min	(Not clearly listed, but designed for heavier use)
Run Time (with 6.0 Ah battery)	Up to 8 hours	Up to 9 hours continuous use with fan nozzle (per Total Tools)
Spray Modes / Nozzles	Dual-action head: you can switch between “mist” and “jet” spray modes	Comes with “dual cone” nozzle or flat fan nozzle, interchangeable
Design / Ergonomics	Lightweight (around 3.5 kg with battery, per listing) shoulder harness included curved tank to sit comfortably against hip	Backpack harness design, ventilated back pad, ergonomic shape for longer use
Features / Controls	Extendable wand, lock-on lever (so you don’t need to keep squeezing trigger), auto-stop when handle released	External on/off switch, battery fuel indicator, drainage outlet for rinse & emptying, auto stop when handle not engaged
Battery & Compatibility	Works with Makita 18 V packs (batteries not included)	Also skin only. Compatible with Makita’s 18 V battery line.

Given these specs, the 5 L model is more suited to smaller gardens, spot spraying, or lighter tasks. The 15 L backpack unit is better for large gardens, commercial use, or when you need to carry more capacity and spray continuously.

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Use Cases & Advantages

Here are where having a Makita 18 V sprayer gives real benefit:

• Spraying herbicides, insecticides, fungicides in gardens or small farms
• Applying liquid fertilizers or foliar feeds
• Sanitizing / disinfecting surfaces (if your formulations are safe)
• General water / misting tasks where a fine spray is needed
• Jobs where a power cord or hand pump is inconvenient
• Remote or large properties where running cables is impractical

The advantages over manual or pump sprayers include:

• No need to manually pump — less fatigue
• Consistent pressure & spray rate
• Better reach via wand / nozzle designs
• Ability to switch between spray styles (mist vs jet)
• Longer continuous operation (depending on battery)
• Cleaner application and less overspray with better controls

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Limitations & What to Watch For

• Battery limits: high-demand spraying (dense foliage, strong spray) will deplete battery faster
• Weight with battery + full tank can become significant (especially the 15 L model)
• Tank cleaning & residue: you’ll need to flush the system especially if chemical formulations are used
• Nozzle clogging: fine nozzles are prone to blockages — filters or strainer help
• Compatibility of chemicals: some sprayer materials may not be suitable with aggressive chemicals
• Seals and O-ring maintenance: regular checks to prevent leaks
• Limited maximum pressure and flow compared to motorized, mains, or propane sprayers

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Tips & Recommendations for Best Use

• Use a filter or strainer on the intake to avoid debris entering the pump
• Always flush with clean water after each chemical use to protect the pump and seals
• Use lower spray settings when full pressure isn’t necessary — saves battery
• Choose spray mode (mist vs jet) depending on the task — delicate plants vs spot treatment
• Carry a spare nozzle or tip — these are often the first to wear or clog
• Balance the load when using the backpack unit — adjust straps for comfort
• Tilt or angle the wand properly — avoid spray hitting yourself or causing drift
• Check battery capacity and carry spares if doing large areas or long sessions
• Inspect seals, hoses, and tank regularly for wear or damage