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Best Backpack Sprayer Reviews For The Money

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The best backpack sprayers are practical technical tools using which you can spray chemicals on turf, trees, and gardens to keep them free of pests and weeds that could end up eating through your gorgeous spreads. This certainly means a few hours spent getting them onto all the right places. Comfort and chemical quantity are two critical factors to look out for. If you have ever had a chemical burn, you know the importance of finding the integrity of design in your sprayer of choice.

In this guide, we cover detailed reviews and everything you need to know about the best backpack sprayers. The last thing you need is to harm yourself by getting chemicals on you unintentionally. With sprayers, you can target small areas without getting the liquid everywhere. Sprayers do indeed aerosolize the chemicals for fog-spraying (you will need to put on a mask for this) but you can also ‘dab' or spray (based on the type of nozzle you use) onto right spots. This solves a world of potential problems and health threats. Backpack sprayers come designed to keep the wearer safe during spraying (within reason). This is quite the advantage, and we'll explore the benefits in detail below.

best backpack sprayer

There are manual and powered backpack sprayers, the two sub-types being diaphragm and piston. Choosing the best one from the lineup depends on your requirements, from the size of the tree farm or vineyard, etc. to how often you need to spray them to keep unwanted pests away; our top-rated backpack sprayer reviews below will help you decide.

With intuitive control features and accurate target-spraying, your choice of best backpack sprayer should also be easy to fill and come with comfortable straps that distribute its weight along your shoulders; for those long-term spraying sessions when fatigue comes calling. All this determines performance where sprayers are concerned.

The best spec to look out for is safety. Accidents can happen. You may be too bored or frustrated to focus on cleaning and filling the tank that you might end up experiencing leakage. Pay attention to backpack sprayers that come with anti-leak safety features. This will save you the serious hassle. Next comes ergonomics. There’s no point hefting a sprayer that’s going to tire you out in an hour. Get one with all the right harnesses and cinches to help you do right by your landscaping projects. You need to also get other protective gear, from gloves and shirts to pants and a hat; as required.

Best Backpack Sprayer Reviews

Looking for the best backpack sprayer? You are in the right place!

Our reviews below are slightly more detailed than an outline of each product. These sprayers warrant a more detailed exploration of their varied features and uses. If you are someone who loves to garden or plain take care of backyards and grounds, opt for DIY sprayers. If, on the other hand, you are a professional (licensed and seasoned), go for the higher grade models we cover below. The aim is to find the best backpack sprayer for the job. This tags time, effort, safety, chemicals used, and how often you need to spray.

1. Chapin 61900 4-Gallon Tree/Turf Pro Commercial Backpack Sprayer


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These are the key features of the Chapin 61900.

  • Shoulder straps with long-term padded comfort
  • Diverse applications; shut-off is Cushion-gripped and has three nozzles
  • The filter is removable and cleanable; in-tank, with a 3-stage filtration system
  • Simplified cleaning and filling; 4-inch mouth opening and translucent 4-gallon tank
  • Chemical compatibility via Viton Seals: pesticides, weed killers, and general fertilizers
  • Stainless steel wand.


One of the most exceptional advantages of the Chapin 61900 is that both professional and DIY-ers alike can use it with ease.

  • The 4-gallon tank helps you cover a large area without the need to refill too often
  • The very design and seal structure ensures absolutely no leakage
  • The shut-off also hosts a pressure gauge. You can conveniently check the pressure at any time
  • The shut-off has three nozzles and comes with an ergonomic cushion-grip handle.
  • The nozzles are ideal for different kinds of applications
  • The sprayer cap has a strainer basket to catch debris, so nothing clogs the nozzles
  • The back pad and shoulder straps provide supreme comfort. You can wear the Chapin 61900 for hours.

How It Helps

There are several ways that the Chapin 61900 rises to the challenges faced by backpack sprayers today.

  • The in-tank filter can be gripped and removed with relative ease.
  • The 3-stage filtration can be easily cleaned and slipped back into the tank
  • The sprayer cap has a 4-inch mouth opening that promotes ideal cleaning and filling
  • Its compatibility with common fertilizers is another amazing addition to the mix.
  • You can also access difficult-to-reach places using the long stainless steel wand
  • Versatility is high with this backpack sprayer. From pesticide use for gardens and homes to its compatibility with fungicides for boats and yachts, you have a plethora of options with the Chapin 61900.


2. Chapin 61800 4-Gallon ProSeries Backpack Sprayer


Chapin 61800 4Gal Backpack Sprayer, 4-Gallon, Translucent White

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These are the key features of the Chapin 61800.

  • Ideally padded shoulder straps for comfort
  • The poly shut-off is Cushion-gripped
  • Three nozzles for diverse applications
  • In-tank filter is removable and cleanable; has a 3-stage filtration system
  • Mouth is 4 inches wide, and the tank is 4 gallons, making it easy to clean and fill
  • Compatible with pesticides, fungicides, weed killers, and sundry fertilizers


Much of its features are common to the 61900 model from Chapin that we reviewed earlier, but the fact remains that the 61800 brings a different look and design, with slight variations.

  • The 3-stage filtration system comes designed to prevent clogging
  • You can view the fluid levels easily thanks to a translucent tank design
  • The poly wand has a useful cushion-grip feature to help ease your hold, even when using the shut-off
  • Three brass nozzles are reliable and cleanable
  • Viton Seals impart high compatibility with pesticides, weed killers, and fertilizers
  • There is a pressure check inside the tank. You can select 30, 45, 60, or 80 psi, as you see fit.

How It Helps

Superbly balanced features make the Chapin 61800 one of the most flexible backpack sprayers on the market.

  • Padded backpack straps and a cushioned grip at shut-off make your tasks and outdoor projects that much more convenient
  • One of the most compatible chemical sprayers on the market, you can also use bleach with the Chapin 61800
  •  Leaks have been noticed in the connection point where the spray head tube joins the external pump. It is not the pump itself that leaks, so you can resolve the situation with a simple hose clamp tightening.


3. Solo 425 4-Gallon Professional Piston Backpack Sprayer


Solo 425 4-Gallon Professional Piston Backpack Sprayer, Wide Pressure Range up to 90 psi

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Here are some of the main features on the Solo 425.

  • Diversity in spraying tasks thanks to 4 distinct nozzles (jet stream, hollow cone, fan spray, and one fully adjustable nozzle)
  •  Interchangeable use for the pump handle
  •  Excellent reach via the 48-inch high-pressure hose; nylon-reinforced
  •  High-pressure capability
  •  Shut-off valve; commercial
  •  High chemical compatibility


The Solo 425 is making waves in the industry with its innovative features and fresh design touches.

  • Whether you are left- or right-handed, you will undoubtedly appreciate the smart pump handle design
  • Durability and long-term use guaranteed thanks to Viton Seals at strategic points
  • With the high-performance piston pump, you can use pressures as high as 90 psi
  • The shut-off valve comes designed to reduce fatigue via a neat lock-on/lock-off design feature
  • You will find one of the broadest chemical compatibility ranges on the Solo 425: unique formulations for the plant, shrub, and tree protection, not to forget pesticides, herbicides, fertilizers, and liquid disinfectants.

How It Helps

With an outstanding model like the 425 from Solo’s line of backpack sprayers, you are looking at some of the most helpful options around.

  • Its high-pressure nature lets you use anything from 60 to 90 psi; among other variations. The connecting rod actuated piston pump grants good range comes with a 55cm spray tube, and a pressure hose 4 feet high
  • At 4 gallons, the tank is ideal for long-term spraying sessions
  • The polyester straps come padded for comfort
  • The tank is resistant to UV-radiation, so long hours spraying under the sun isn’t a hassle.
  • Its plastic is high-grade and corrosion-resistant. The rubber and metal portions aren’t exposed to the chemicals inside.

4. Solo 475-B Professional Diaphragm Pump Backpack Sprayer

Solo 475-B Diaphragm Pump Backpack Sprayer, 4-Gallon, Bleach Resistant Pump Assembly

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Here are some of the main features of the Solo 475-B Professional.

  • Assorted four nozzles (jet stream, hollow cone, fan spray, and an adjustable nozzle) for different spraying  tasks; compatible with TeeJet
  • Improved reach thanks to a high-pressure hose; 48-inch nylon-reinforced
  • High-quality Tivilon material for the diaphragm
  • Up to 60 psi pressure capability
  • Wide range chemical compatibility.


Ideal for some of the most challenging spraying tasks, the Solo 475-B Professional lives up to its reputation.

  • The pump is interchangeable, making it convenient for left- and right-handed users
  • The diaphragm’s Tivilon material provides excellent protection against chemicals; resistant even to harsh fluids
  • The diaphragm pump works with a wide variety of compounds: from bleach and liquid solutions to dissolvable powders. Also, varied formulations for the plant, shrub, and tree protection as well as different pesticides, herbicides, and fertilizers
  • It can even pass out tiny abrasive particles without resulting in pump assembly damage.

How It Helps

Supporting your landscaping prowess in remarkable ways, the Solo 475-B Professional lets you perform a vast range of tasks and projects.

  • Its connecting rod-actuated diaphragm pump system is quite innovative and brings excellence
  • The material going into this sprayer is highly durable and promotes the long-lasting use
  • That it can handle a wider variety of chemicals than most other backpack sprayers is a sign of quality and versatility. It’s also compatible with wettable powder-form substances
  • Abrasive substances in the liquid do not clog the pump system. This means you can indeed use water from rivers, lakes, and wells to clean or fill this sprayer; remarkable efficiency
  • The waist belt and back strap are as comfortable as they are convenient
  • The intake filter is surprisingly easy to clean for a sprayer as technical as this one
  • You can spray anywhere in a 15-20 foot radius.

5. Hudson 13854 Never Pump Bak-Pak 4 Gallon Battery Operated Sprayer


Hudson 13854 Never Pump Bak-Pak 4 Gallon Battery Operated Sprayer

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Here are some of the main features on the Hudson 13854.

  • Four varied-application nozzle settings (fan, dual cone, single cone, and extended reach)
  • Polyester on/off valve, thumb-operated, well-sized
  • 4-inch tank opening for easy cleaning and filling
  • Non-kinking hose
  • Long fiberglass/polyester wand
  • Durable tank
  • Battery-powered not pump-action.


Aside from having some of the most ergonomic features on backpack sprayers of its kind, the Hudson 13854 is also quite competent.

  • The tank opens 4 inches wide for convenient cleaning/filling and is also equipped with a screen filter to keep debris and dirt out
  • The hose is 72 inches and makes for wide-reach spraying
  • The fiberglass/poly spray wand is extra long at 20 inches and provides right-on-target spraying via a curved tip
  • The tank is poly-made, robust, and translucent; makes for easy viewing of fluid levels
  • No pump required for this battery-powered beast that can go for a continuous 10 hours (i.e., 600 minutes) on a single charge.

How It Helps

As if the battery power wasn’t sufficient enough, the Hudson 13854 is a great backpack sprayer filled with design additions that come ready to help anyone familiar with spray systems.

  • The battery potential is outstanding. You also get an AC adapter that can efficiently charge the battery from nil to full in 9 hours, maximum
  • The nozzles are a work of art in their own right: the cone nozzle reduces wastage by spraying right on target. The shower nozzle is long-reaching and adjustable, makes for high-reach spraying and drenching materials like thick weed patches, bark, and gravel. The dual cone nozzle provides wide-area coverage through a fine fog-like particle spray; combined with insecticides, this nozzle can evenly coat everything up to canopy-level. Finally, the fan nozzle is ideal for flat surfaces (crevices, cracks, and rows); sprays with minimal drift.


6. Roundup 190327 No Leak Pump Backpack Sprayer


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Here are some of the main features on the Roundup 190327.

  • Four nozzles: 1 foaming, one poly-adjustable, and two flat fans
  • Easy-access pump with leak-resistance; no accidental chemical drips
  • Quality shut-off with outstanding sub-features
  • Durable poly wand; 21 inches
  • Removable in-line filter
  • Pressure capabilities up to 150 psi.


Some of the most excellent all-rounder features have gone into this backpack sprayer’s design and usability.

  • The nozzle variety is practical and straightforward. The Roundup 190327 is also compatible with TeeJet nozzles
  • Aside from the pump is easy to access, this roundup sprayer also lets you change seals in a matter of minutes; no need for tools in this regard. It is internalized and comes with a no-leak design
  • The shut-off is superior quality and lockable. It comprises an in-line filter and brass components
  • The wand is made of durable polyester and is extra long at 21 inches with Viton sealing that provides optimal chemical resistance
  • Ideal for left- and right-handed users; foldable pump handle
  • Built-in carry handle and wand storing option in the tank itself
  • Pressure capability: 25-150 psi.

How It Helps

 Your back and clothing remain dry and safe thanks to the tank’s no-leak design

  • You can maintain solutions comprising powders, liquids, and water-soluble substances and use them as you please
  • The in-a-few-minutes Viton seal alteration is an innovative design addition; you can perform it toll-free. The Roundup 190327 is seven times faster in this regard than its leading competitor
  •  A locking trigger and premium quality design/materials have made the shut-off ergonomic; less fatigue
  •  Clog-reduction via the removable in-line filter
  •  Surprisingly high-pressure capability (maximum 150 psi) for the price
  •  Padding and comfort in the chest strap, waist belt, and shoulder cinch
  •  Outstanding nozzle design: flat fan nozzles wide (red, 0.25 GPM, angled at 70°) and narrow (yellow, 0.15 GPM, angled at 30°), not to forget the foaming and poly-adjustable nozzles.

flat fan nozzles wide (red, 0.25 GPM, angled at 70°) and narrow (yellow, 0.15 GPM, angled at 30°), not to forget the foaming and poly-adjustable nozzles.

Different Types Of Backpack Sprayers

Maintaining grounds is not easy work, but the right tools can make a world of difference. Speaking of, most customers want to learn the difference between piston and diaphragm sprayers.

  • Piston pumps use pistons; you can recognize them by their up-down motions while spraying. You have a chamber to fit the piston device that then goes into the tank.
  • By pumping the provided handle, you generate pressure in the chamber that forces liquid into the wand before spraying.
  • Piston pumps also generate an excellent pressure range (measured in psi), going as high as 90 psi.

comparison between piston diaphragm best backpack sprayer

How are they different from their diaphragm cousins?

  • The design reveals the difference at first sight. Diaphragm sprayers do not have a piston chamber going into the tank.
  • You work it much the same as a piston sprayer, by pumping the handle that in turn pumps a diaphragm.

The most significant difference between Piston and Diaphragm?

  • Piston sprayers cannot handle overly harsh chemicals lest their cylinder be damaged.
  • Diaphragm sprayers can do one better and even pass small abrasive particles through their systems with no damage to components.
  • The latter is more expensive than the former.

Aside from these two common types, you also have high-end sprayers like gasoline powered hydraulic and air-assisted models, not to forget rechargeable electric or battery powered motors. These are very expensive but come with smart design features like[G160]  digital displays, auto-flush options, ergonomic carts instead of backpack straps, pressure control systems, and more. Suffice to say; you do not need all this for everyday tasks unless you own vast estates or grand grounds that need such pricey attention (Parks & Recreation).

Critical Backpack Sprayer Parts & Components

While shopping for the best backpack sprayers, be sure to keep an eye out for quality parts and components:

  • Clamps
  • Fittings
  • Hoses
  • Reels
  • Tanks
  • Pumps
  • Engines
  • Nozzles
  • Pump Handles

Avoid low-quality parts unless reviews mention value for money. Bad sprayers can end up causing more harm than good. Ordering online can be tricky because you aren’t feeling the parts before purchase. However, make sure you do once you get the package and, if you’re dissatisfied at any time, call customer support.

You can download best backpack sprayer replacement parts & manual below:

How To Calibrate Backpack Sprayers

These are the measures and steps you need to go through while using a backpack sprayer.


This needs only three distinct measurements:

  • Your walking speed
  • The sprayer’s output per minute
  • The Swath Width, aka the sprayer’s width with each pass


  • Clean the nozzle and sprayed thoroughly. Use water in the tank and test-spray to see if the pass is uniform. If not, clean the nozzle or replace it altogether. You can even add a marker dye to the water to test for uniformity. Adjustable nozzles will need you to set them in all their positions to see if the spray is uniform for each.
  • Measure an area 18.5 x 18.5 feet and time the seconds it takes to spray it uniformly. You can use side-to-side sweeps; like you would when spray-painting a car or home. Throughout this time, maintain constant pressure, and don’t alter it from start to finish of this step.
  • Put your stopwatch down when you are ready, and spray into an allotted container for the same amount of time. Maintain constant pressure even now.
  • By measuring the fluid ounces in the container or bucket, you gain the measure for many gallons per acre that your sprayer can deliver (the 18.5 measure earlier equates to 1/128th of an acre).

You can now add the required amount of herbicide to your best backpack sprayer’s tank based on the area you need to be covered. There are specific equations and tables to help you calibrate sprayers more precisely, based on whether you are using dry or liquid herbicides or a particular sprayer design.

How far can a backpack sprayer spray?

Determining what you need your sprayer for makes a big difference when selecting the right one for you because sprayers differ in reach. Decide whether you want it for pest control in your garden or other parts of your house.


The length of the wand, the spray, and the spray type that the nozzle creates all determine the distance. Thus, the wider the spray, the shorter the reach. Hand sprayers have longer reach while a pump spray is usually short-ranged.

Generally, the best backpack sprayer can spray as far as 20 to 25 feet.

How To Clean and Maintain Backpack Sprayers

You need to clean backpack sprayers after every use. This directly influences their lifespan. It will also need fewer repairs this way. Use commercial tank cleaners or clean water. What else do you need to know about sprayer maintenance?

  • At least once a year, you need to lubricate the o-rings and seals.
  • If you reside in cold climates, use RV or automotive anti-freeze, the latter being the better choice. It’s less corrosive on sprayer equipment, especially pumps and seals. The only disadvantage with automotive antifreeze is that it’s highly toxic and needs to be disposed of in specific ways or aptly reused. RV antifreeze, on the other hand, is not as effective but at least it’s non-toxic and can even be sprayed on the ground on short notice.
  • Some maintenance-related questions that you need to ask before buying a backpack sprayer: Can essential components be serviced? Can you remove the pump without hassle? Can you change the engine without any compatibility issues?

It is always a good idea to send your sprayer in for service. Components have to be readily accessible in case you are DIY-er who can repair your sprayers. Regular service will keep your sprayer in top condition. Professionals will spot issues ahead of time (preventative maintenance), so you can go on using your sprayer, within reason, until they get hold of the needed component(s) on your behalf.

Backpack Sprayer Safety Rules and Other Tips

1. Pressure

It has to be released before storage else lifespan will be affected for o-rings, gaskets, fittings, hoses, etc. This will place more stress on the motor or pump at start-up to say nothing of freeze damage; because there’s no room for the water to expand inside the pressurized space. Always release sprayer pressure at the end of every day.

2. Repair Kits

Emergency repair kits are a great way to get rid of a technical problem before it gets worse. Keep a few key parts in this kit; spares. Belts, gaskets, o-rings, and filters are the easiest to replace. If you own a business, have professionals or technicians ready to choose what goes on the truck. They should also be proficient at making field repairs. This brings us to…

3. Employee Training

This is for those who own sprayer businesses. You’ll be surprised just how many problems arise from employee-related mishaps. You need to keep training them at regular intervals to understand and handle backpack sprayers; otherwise, they will sooner or later grow lax in their duties, which will result in human error and that sprayer needing massive (often avoidable) repairs.

4. Inspection

This is both a tip and a full-fledged safety point. Inspect your backpack sprayer before you take it out to the backyard or elsewhere. Check if the right fluids are present. Does anything look ‘off’ or ‘unreliable’? Are all parts secured and is everything there that you need to take to the task? Check to see if the proper pressure build-up happens. Leakage and the sound of the sprayer make both need to be observed. With the right volume and pressure, does the backpack sprayer pass the ‘uniform spray’ test?

5. Accessories

Sprayers have their own set of accessories to help you work better. Couplers help you quickly remove spray wands for storage and transport (i.e., portability). For those more sensitive plants and flowers, get yourself a shut-off mechanism at the spray tip instead of at the back of the handle. You will also experience much less dripping this way. Better harnesses are indeed available, and some even have waterproof pads to prevent chemical saturation. You can have pressure regulators to go on sprayers; if yours doesn’t come with one. This accessory can also go on the calibrator valve or spray wand. Not only does it prevent unnecessary pressure spikes, but it also reduces drifts and promotes constant or consistent spraying.

How to Properly Store a Backpack Sprayer

One very important thing to remember when storing your backpack sprayer is to never put the sprayer away while it still contains pesticides or any other chemicals on it.


Make sure to clean all the parts of the sprayer such as the spray nozzle, spray tank, and even the shoulder straps. Store it in a separate area away from children or pets reach.

Final Review of the Best Backpack Sprayers

There is so much to a sprayer that you can choose the best garden backpack sprayers and still find them overly technical if you do not know how to use them. Please do your homework, check reviews and guides like the ones we have on our site/blog. What do you most intend to use the sprayer for? If you use, say, oil-based carriers your sprayer should reflect that in its hose, pump, and seal designs; in other words, these should be resistant to oil-based chemicals.

Generally, sprayers will be put into different tasks. Such diversity in the application is a given and much welcome trait among these instruments. Non-leaking spray wands are resource-saving features; better if they can accommodate commercial nozzles like TeeJets.

Whether you opt for the diaphragm (more expensive) or piston (less expensive) pump systems, you must get the right sprayer for the liquids you plan to use. If you happen to use herbicide formulations that are either dry or dry-flowable, piston pumps may prove a bad investment. Where versatility, chemical compatibility, durability, and ease of repair are concerned, diaphragm backpack sprayers are worth the cost.

Lasting you years and bringing high efficiency to the maintenance and beauty of your grounds, the best backpack sprayers are designed to impart innovation and practicality to make your spraying tasks easier. There are indeed safety concerns that you need to watch out for when handling these instruments. With a little familiarity and a few hours spent spraying on the field, you will get the hang of things, if you’re a DIY-er, and you will be more than impressed if you’re a professional.

Last update on 2021-01-15 at 22:14 / Affiliate links / Images from Amazon Product Advertising API

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