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Best Backpack Spray For Compost Tea

Publish Data: January 14, 2022

by Mr. Green

When you had planned to use eco-friendly green products in your garden you probably had the idea of using compost tea. Compost tea is a great method to bring fertility and arability to land.

You can simply mix compost and water and make your compost tea or even get a commercially available compost tea packet and mix them with water and use.

However, you will be needing to spray compost tea in your garden. You can simply use a sprayer and spray compost tea all over your garden.

If you’re going to spray 5-gallon compost tea per acre I suggest you use a backpack sprayer instead of a handheld one. Using a backpack sprayer will get your work done very swiftly and easily.

Best Backpack Spray for Compost Tea

Selecting the Best Backpack Spray for Compost Tea might be a difficult job for you. So, worry not, we have done the job for you. Follow till the end of this article and get to know all you need to know about compost tea, and backpack sprayers select your ideal backpack sprayer, and get started to work.

In a hurry? Here are my top three selections from which you can take one while keeping your eyes closed.

Our Top Products

1. Field King 190328 Backpack Sprayer

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When it comes to backpack sprayers, Field King’s Professional 190328 Backpack Sprayer is one of our most highly rated, and Everything about this backpack sprayer, from its comfortable, ergonomic carrier to its internal no-leak pump, has been carefully thought out and executed.

In the past, professional horticulturists have relied on Field King sprayers to get the job done, so when you buy this one, you can rest assured that you’re getting a high-quality product.

An internal No Leak pump ensures your clothing and back are kept dry. What’s more, no matter how corrosive the chemicals are, they won’t get in your body. To ensure that your materials are properly mixed and ready to use, the paddles on the inside of the,

In addition, the pump is equipped with Viton seals, which can be changed in a matter of seconds without the use of any tools.

This once-in-a-lifetime investment is going to make your gardening journey easier. Apart from compost tea spraying, you can use it for more functions like pest control, moist control, and event spray water on dry leaves of your plant.

As it’s been used by professionals, you can easily rely on its capability. You can easily add it to your gardening tools and take your gardening experience to a different level.


Product Dimensions: 15 x 22.5 x 9.5
Item Weight: 12.8 Pounds

What We Loved About Field King 190328 Backpack Sprayer-

  • Very easy to assemble
  • Shoulder straps are durable and well-padded for extra comfort.
  • Sprays can reach up to 20 feet in spraying areas.
  • Comes with four different nozzles and extra ones can be added without any tools.
  • Unlike other comparable models, the pressure chamber can reach a maximum PSI of 150, which is 65 percent higher.

What we didn’t like about Field King 190328 Backpack Sprayer-

  • Although the chance is very low, some of the units have been criticized for leaking after some years but be assured the number of defective units is very low.

 2. CHAPIN 61500 Backpack Sprayer

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Chapin 61500 4-Gallon Euro Style Backpack Sprayer is another great option as your spraying partner. Most of the backpack sprayers are either spherical or tall and rectangular in shape.

The Chapin 61500 comes very close to being a perfect square. It’s unlikely that the form will have a significant impact on performance, but it can have an impact on your comfort.

This sprayer has a 4-gallon capacity. The tank has a square shape and weighs 10 pounds. As a result, European design already has a major advantage. When compared to other sprayers, it has the same amount of holding capacity as most of them, but it is much lighter and smaller in shape.

The spray tip is also adjustable, so you can go from a fine fist to a focused spray. As a result, there is no need to carry around four separate nozzles that you may lose at any time.

It can spray up to 25 feet horizontally and 23 feet vertically. The tank is filled via a 4-inch mouth. If you’re looking for something that’s not as wide as the rest, this will do. When it comes to the piston pump system on the sprayer, it has a great pump to spray ratio.

Be assured that you won’t have to pump as hard and as long as you can to reach a 25-foot spraying distance. Its unique design and features will surely astonish you too.


Product Dimensions- 17.25 x 9.75 x 18.25 inches
Item Weight- 10.6 pounds

What We Loved About CHAPIN 61500 Backpack Sprayer

  • Unique lightweight European design with outstanding performance.
  • Easy filling and cleaning with a 4-inch-wide mouth opening
  • Compatible with common fertilizers, weed killers, and pesticides
  • 2-Stage filtration system

What we didn’t like about CHAPIN 61500 Backpack Sprayer

  • There is a lack of comfort in the straps.

3. SOLO 10207 4Gl Backpack Sprayer

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If you are still looking for more options to look from then you might have a look at SOLO 10207 4Gl Backpack Sprayer.

This backpack sprayer is one of its kind. Easy spraying of liquid disinfectants, fertilizers, herbicides, and pesticides for tree, shrub, and plant protection with Solo’s high-performance piston.

It comes with a 20-inch unbreakable wand and a 48-inch nylon-reinforced high-pressure hose. Four different types of spraying nozzles can be easily changed—Plastic Adjustable nozzle, Fan Spray, Hollow Cone nozzle, and Jet Stream. Due to its extra-large tank opening and rugged metal frame, Solo is very easy to fill and clean quickly.


Product Dimensions- 9 x 20 x 15 inches
Item Weight- 10.3 pounds

What We Loved About SOLO 10207 4Gl

  • Reversible pump handle
  • Durable and Easy to use
  • Sprays well with 4 nozzles

What we didn’t like about SOLO 10207 4Gl

  • Low-quality straps
  • Some leaking issues

4. Chapin 61900 4-Gallon Tree and Turf Pro

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If you are looking for a garden sprayer that will give you utmost comfort then worry not, Chapin 61900 4-Gallon Tree and Turf Pro is the thing you are looking for.

An extra-large 4-gallon translucent poly tank is included with the Chapin 61900. To make filling easy, the 4-inch opening has a filter basket to keep debris out. It also has two more filters to give you the best possible service.

Because of its hardness, however, the sprayer can be worn comfortably once it’s mounted on your back On top of that, there is a chest and a waist belt, as well as a thick, wide As a result, there is no back pain after a long period.


Product Dimensions- 14.8 x 8.4 x 22.2 inches
Item Weight- 9.2 pounds

What We Loved About Chapin 61900

  • Easy to use and clean
  • Comfortable to wear
  • Pressure gauge

What we didn’t like about Chapin 61900

  • Quality issues, the hose gets disconnected from the tank after a long time of use.

5. Field King Max 190348 Backpack Sprayer

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Now that Field King has been around for quite some time, they’re putting out very good products to build a good overall track record. Field King Max 190348 Backpack Sprayer is another great sprayer from the house of Field King.

Field King Max 190348 Backpack Sprayer features a 4-gallon tank with 4 adjustable nozzles for various spraying possibilities. This sprayer can spray with a power of up to 150 psi, a pressure that is very rarely reached by any other product.

When you have an eye for a good sprayer with better parts and comfort, Field King Max 190348 could be your great choice.


Product Dimensions- 15 x 22.5 x 9.5 inches
Item Weight- 12.8 pounds

What We Loved About Field King Max 190348

  • Easy to use and clean.
  • Comfortable to wear.
  • Handle just about any job with 4 different nozzles.
  • Attention to detail in design and the high-quality parts used.
  • The stainless steel-made wand is also durable.

What we didn’t like about Field King Max 190348

  • Some defective units may face issues of the leak, but the number is very small.

Here are some factors you should consider before buying the Best Backpack Spray for Compost Tea:

Holding Tank:

A full tank weighs a lot more than a full backpack sprayer. The use of a large holding tank can be beneficial to those who have to cover large areas, such as farms or estate plots of land.

A robust material, polyethylene plastic is used in the tank’s design and construction, making it resistant to all types of chemicals.

When you close the tank, you won’t be able to smell any fumes because the plastic is UV-resistant. A sprayer with 4 gallons tank capacity might be the best for you.


In some models of backpack sprayers, the pump is powered by a battery, making it more convenient to use. There’s a pump that draws liquid from a reservoir and pumps it up to a pressurizing chamber in a unit. Some seals and valves keep the liquid in place until the user presses down on the wand applicator to apply the product.

It then sprays the liquid in a precise amount over the area. In some models, there is a pump lever on the wand that can be used manually. You should check your desired products about this issue too.

Applicator Wand:

As a result of the applicator wand, the gardener can efficiently spray plants, reducing the overspray and increasing the efficiency of their spraying task.

Gardeners can keep chemicals out of reach while improving spray accuracy with this wand. It is also helpful for the gardener to reach into tight spaces with an applicator wand.


You will notice a big difference in user comfort when spraying for long periods thanks to the harness, straps, and cushioning. Consider a unit with good padding and additional back support for landscapers. You can cover more ground in less time with the help of these features.

In a fully loaded machine, the harness should be comfortable and evenly disperse weight. This means that even as the tank empties and becomes lighter in weight, the sprayer must still provide adequate support.

However, if you’re only going to use it for a short time, you don’t need any padding.


The backpack sprayer’s nozzle is a critical component. In the wand, the rate of dispersion is controlled by the nozzle. When using a model that has a tip that can be adjusted, the spray pattern size and diameter can be changed.

Pour better control and distribution, some models can be used in conjunction with professional spray tip accessories (sold separately). Users can switch between fan, cone, direct, and wide stream spray modes on the wand by changing or repositioning the spray nozzle.

The sprayer flow rate is also controlled by the nozzle. The sprayer can disperse anywhere from 0.3 to 0.5% of its volume per minute.

These are the few basics you should consider before getting yourself the ideal backpack compost tea sprayer in your garden tools collection.

Things you should know about Compost Tea

Here is a small encyclopedia of compost tea for you to fill in your gaps and get all the necessary information you need to know before getting your hands on spraying compost tea in your garden.

What is Compost Tea?

Compost tea is basically compost soaked in a bucket of water which will increase soil health with the help of anaerobic bacteria. Aerated compost tea will help your plants to thrive more. Compost tea is an aerobic water solution in which the microbes and nutrients from compost have been added.

It is a concentrated liquid made by an organic process to enhance beneficial organisms in plants and soil. This aerobic water solution works as an aeration device and helps you to maintain soil health.

If done correctly, the liquid contains billions of helpful bacteria as well as a little number of nutrients for your soil. This liquid compost can be used as a light organic liquid fertilizer on plants at any time of the year.

If correctly brewed, the produced liquid will contain billions of helpful bacteria that will aid in the creation of living soil. The tea should be applied soon after the brewing procedure to avoid the microorganisms from dying.

What are the Benefits of using Compost Tea?

Compost tea application will surely gain you an advantage through uplifting the soil health with the help of beneficial bacteria and nutrient boost. The other benefits of compost tea are-

  • Beneficial bacterial and fungal concentrations are higher in liquid compost than in solid compost. These bacteria strengthen your plants’ defensive mechanisms against erosion, pests, and disease by increasing soil biodiversity.
  • Plants require less watering as a result of improved soil water retention.
  • Unlike solid compost, which can only be applied to the soil, liquid compost can be applied to and rapidly absorbed by plant leaves or soil.
  • In contrast to synthetic fertilizers whose chemicals can injure plant ecosystems or cause over-fertilization to cause fertilizer burn, is environmentally benign and sustainable plant food.

What is Aerated Compost Tea?

Aerated compost tea, also known as aerobic compost tea or actively aerated compost tea, is just that: ordinary compost tea with a lot more oxygen added to it.

It’s believed that aerating the compost will increase the population of beneficial microbes faster and prevent the growth of harmful ones if microbes consume oxygen quickly, resulting in anaerobic conditions.

For this, an aerating pump, similar to those used in fish tanks, is used. This causes the liquid to bubble and adds more oxygen to the water.

How to Make Compost Tea?

You can easily make compost tea by yourself. You will just need to show your love for your garden and put in some effort. Making compost tea is easier than making compost. Let’s get to work.

At first, get the following things-

  • 5 Gallon Bucket
  • Water Source or Tap
  • 2 Cups of Organic Compost
  • Half a Cup of bacteria or fungi food

You can easily use sugar and proteins as bacteria food. You can use any kind of unsulphured molasses as bacteria food. You can use kitchen garbage like a fish waste to use as fungi food. Keep a note that fungi food will help you to get the most out of your overall effort.

Molasses and fungi food can be combined to create a good balance of nutrition for both fungi and bacteria. It all depends on what you have on hand.

You also need to keep a tab on your water used. You should use chlorine-free water. Chlorinated water will kill the bacteria and make your compost tea fertile. Rainwater is the best source of non-chlorinated water.

You can also use tap water but for that, you must let the water sit for at least a day to be free from chlorine.

When you are set with the ingredients then let’s get to work.

Popularly a burlap bag is often used to separate the tea from the solids after the compost has been dumped in. Although it is used like tradition, it makes the work hectic.

Let me give you a secret tip. You can easily use a nylon cloth to do the job easily. Putting the ingredients into a nylon stocking or a porous cloth tied into a bag is easier and requires less effort. You can use a rope or a long end can be used to pull it up so you don’t have to stick your hand in it.

If you are making aerated compost tea, then you have some more work to do at this stage. Get yourself an air pump and airstone or aquarium bubbler to add oxygen to your compost tea.

Let it sit for a few hours. If you wait any longer than that, bad bacteria will take over and you’ll be in big trouble. That means you’ve gone too far and need to get rid of it.

For the active microorganisms to survive, your tea must be sprayed within four hours of being prepared.

How to use Commercially Produced Compost tea?

If you don’t want to take the hassle to make compost tea by yourself, you can easily look up factory-made ready-to-use compost tea. Wherever you may live, you will find them almost anywhere, in departmental shops or garden shops near you.

You may also get them online from Amazon or any other website. They normally come in three packs-

  • Tea Bag that is to be soaked in water before use.
  • Soluble powder, that is easily blended into the water and ready to spray.
  • Liquid Concentrate that is very easily mixed with water.

Using compost tea bags is the cleanest, simplest option because there’s no need to measure the tea. Single-serve tea bags can be soaked for up to 24 hours in the water, then drained and mixed for several minutes to create an oxygen-rich solution.

Spray your plants or soil by pouring it into a watering can or spray bottle, or using a pump sprayer, as directed on the packaging.

Compost Tea Powder may be a little more difficult to work with than tea bags but once dissolved, it can be used right away. It is very easy. Just mix the powder with water in a five-gallon bucket according to the instructions on the package, and then apply to plants or soil with a sprayer.

On the other hand, using a compost tea concentrate is the easiest and most convenient option, but it can be quite expensive. In a five-gallon bucket, mix the concentrate with water and apply with a watering can spray bottle or pump sprayer.

However, you may want to think again before using commercially made compost tea. Most compost teas available for purchase are unlikely to be effective. The microorganisms that were in the tea are likely to be dead. Lacking food and oxygen, bacteria quickly succumb to their demise.

Most commercial compost teas contain only a small amount of nutrients, water, and dead microbes, and are not recommended for long-term use. So, you should think again and brew fresh compost tea with your hands.

How to Apply Compost Tea?

You can easily spray compost tea in your garden using a backpack fertilizer sprayer or any other type of sprayer.

The tea should be diluted to a ratio of at least 1:4 – or 4 cups to 1 gallon. If you want, you may change the ratio to 1:10. Put your compost tea into the sprayer and spray directly to the soil, or you can use it as a foliar spray.

Foliar feeding is mostly used to improve the health of sick or diseased plants. To see meaningful effects, you’ll need to apply more than once, and most experts recommend doing so at least twice a week.

When Should I Apply Compost Tea?

It is best to use compost tea on cool, clear days when the temperature is above freezing and below 80 degrees Fahrenheit. As the midday sun can kill microbes, it’s best to apply sunscreen in the morning or evening.

The frequency of applying will depend on your region, weather, soil, and so forth. However, it’s safe if you apply three times a year.

  • At the beginning of spring, you may drench your soil with compost tea.
  • In the middle of summer, you can spray compost tea beside watering your plants to keep them dehydrated and healthy.
  • In the late autumn, your plants deserve a small treat from you when they are tired after leaf fall. Why not treat them with some compost tea?

You can also spray compost tea any time of the year. When plants are planted or transplanted with the tea, their defenses against disease-causing pathogens are boosted. Seedlings and established plants can also benefit from its use.

Every two to four weeks during the growing season, it’s a good idea to reapply compost tea. Spraying compost tea will bring you many benefits so why not do them multiples times a year!

Is Dry Compost better than Compost Tea?

As far as soil regeneration goes, dry compost is the most effective. Compost that is high in organic matter, nutrients, and microorganisms will greatly improve the soil. There is a common misconception that a compost tea will accomplish the same thing as dry compost, but with a lot less work.

The composition of dry compost and compost tea, on the other hand, is very different. Compost teas do not contain these long-lasting food sources. But still, compost tea is both easy to brew and spray, so may want to stick to tea.

How to Clean Equipment after Spraying Compost Tea?

Keep your brewer bucket, air diffuser, and spray applicator in tip-top shape by thoroughly cleaning them after each batch of tea. Remove any bio-slime residue from your components by using dish soap and a scrub brush.

The air-diffuser that comes with our Garden Tea Brewer can be cleaned in the dishwasher with no problem. Clean your equipment with Hydrogen Peroxide.

Using hydrogen peroxide with dish soap and warm water kills a lot of microbes. You can use baking soda as an abrasive cleanser to remove dirt. If you’re making beer or wine at home, you can use “No Rinse Cleaners” to sanitize your bottles and equipment.

Things You Need to Look for Before Choosing the Best Backpack Sprayer for your Garden

There are a variety of backpack sprayers to choose from in this review. While there may be some solutions that work well for a home gardener but not a landscaper, there is no one-size-fits-all solution.

When it comes to choosing the best backpack spray for compost tea, you must consider several factors before making a final decision.

The user’s comfort, economy, and ease of use are some of the most important factors in your decision. It’s up to you to decide which model is best suited to your unique situation. Maybe we can shed some light on this for you!

Best Brands for Backpack Sprayer

Here are the three best brands for backpack sprayers from which you can pick blindly:

Field King

Field King is maybe the most trusted brand among the users. It’s a sub-brand of D.B. Smith and the products are produced by Fountain Head Group.

Fountain Head Group entered the market through their first compressed air sprayer in 1888, and ever since then, they have been committed to creating products that make consumers’ lives more convenient. Through numerous category-leading introductions, they have built the brand’s reputation as the innovation leader in liquid applicator technologies over the years.

Since then, they have expanded the product line to include a wide range of high-quality sprayers for home use as well as professional applications. It’s no secret that they sell the best sprayers and foggers under a variety of brands such as Roundup and D.B. Smith as well as Field King and Indian.

Their goal is to produce products that will bring the best out of the money their customers spend. So, you can easily pick a sprayer for your garden from Fields King.


Chapin was brought up in a household in New York. Through innovation and great design, the brand registered itself as a great brand for manufacturing storage tanks, pumps, compressed air sprayers, and hand sprayers.

Sprayers from Chapin are manufactured in New York’s Batavia and shipped to customers all over the world. It is one of the world’s largest sprayer manufacturing facilities. Before the products are shipped, Chapin products must pass a stringent quality control process.

Their proprietary 12-step, computer-controlled Tri-Poxy coating process inhibits corrosion and rust on all metal sprayer interior seams, welds, crevices, floors, and walls.

This rigorous process made the brand as it has become. You can easily pick any product from Chapin and be assured about getting the best value for your money.


Solo is another widely trusted brand for gardening tools. You may also consider the products of Solo while picking a sprayer to spray compost tea in your garden.

Hans and Heinz Emmerich created their first small two-stroke engine in 1948, weighing in at 14.3 pounds, which was a huge accomplishment at the time. In 1951, the brothers developed a backpack mist blower powered by an engine.

A single person can operate the new machines instead of using stationary engine-driven pumps with long spray hoses and lots of manpower, giving rise to our future trademark name “Solo”.

A world leader and innovator in the production of backpack, hand-held, and one-handed compression sprayers today is SOLO Incorporated, Inc. Others include spreaders, mist, and air blowers, as well as cutting and chopping machines from Solo.

A lot of the Solo products are built to last. Farmers, professional landscapers, and construction and janitorial workers all choose them because of this. You can easily choose the equipment of Solo that will increase your efficiency and productivity.

Here are Some Common Questions about Compost Tea Answered for You

How long does it take to make compost tea?

It takes mostly 24 hours to make compost tea. You might also need more time depending upon your case, but it wouldn’t exceed more than 48 hours.

How to Make and Use Aerated Compost Tea (ACT) in Your Garden?

You need to add more oxygen with a stone pump to make Aerated Compost Tea from regular Compost tea. For details read the full article.

How do I apply the compost tea to my plants and soil?

You can easily spray compost tea in your garden with a backpack sprayer.

Will My Lawn Benefit from a Compost Tea?

Using a compost tea on a lawn with dead soil and no beneficial microbial activity may seem like a good idea. Compost tea alone is not going to solve your issue.

A lawn or plants will benefit from the compost tea when the microbes have access to fresh air and water. The microbes might make it to the soil, but they’ll die quickly if they don’t have the right living conditions.

Does Dry Compost or Compost Tea Work Better?

Dry Compost works kind of better than Compost Tea but Compost Tea is more hassle-free and worth taking the call.

Do Bottled Compost Teas Work?

In bottled compost tea, the microorganisms that were in the tea are likely to be dead owing to a lack of food, light, and air. Hence, it’s better to avoid bottled compost tea.

When do I apply compost tea?

You can spray compost at any time. When you feel that the soil is lacking enough microorganisms or bacteria and fungi for your plant, spray some compost tea and see the magic.

How to Make Compost Tea?

Making compost tea is easier than spraying. You just have to let organic compost soak in water for a day and then it’s done. For details, look up the article thoroughly.

What is a Compost Tea?

Compost tea is organic compost-soaked water that works as food for the soil and brings life to the soil.

Do Compost Teas Work?

Yes, they work. Compost tea helps to bring life to your soil which ultimately helps your plants to grow more.

Few Last Words

Spraying compost tea in your garden will benefit you in the long term. After brewing compost tea, spray it as soon as possible. Also, look if the tea is overcooked or not. A decent sprayer will help you a ton in terms of getting the work done more efficiently.

Although there are many sprayers available that can easily be used to spray compost tea, the mentioned ones especially the Field King 190328 Backpack Sprayer will greatly save your time and effort through its great performance. A good investment is waiting for your call!

Happy Gardening!