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To treat plants and trees from pests and diseases, gardeners often use special sprayers. Popular are knapsack products that are lightweight and easy to use.
What are backpack sprayers
Compared to wheeled, mounted or portable devices, the knapsack sprayer is the most convenient and mobile. It is compact and allows you to process flowers and trees from the ground, a ladder or straight from the trunk. The handle makes it easy to carry. But such products help to spray a smaller area without refueling, because their tank is less voluminous. For a small farm, this will not cause inconvenience. It is best to use knapsack sprayers in your garden or garden. A 12 liter tank is enough for 30 acres, 20 liters - 50 acres.
Knapsack sprayers
Each such sprayer consists of a reservoir, a pump pump, a hose and a boom with a control handle. This is the basic equipment. Most parts are made of plastic, as other materials can corrode from the chemicals used. The pump pump is activated by pressing the handle. The more pressing force, the higher the pressure. Average productivity is 600-800 ml per minute.
Key features of the knapsack sprayer
A distinctive feature of knapsack sprayers is convenient and safe carrying on your back when moving around the site and processing plants. The body of the product has a flat rectangular shape and is equipped with belts. Thanks to the specially designed air chamber, the solution will not spill out. Product design includes:
- padded shoulder straps;
- barbell - straight, standard or telescopic, curved;
- branch pipe for connecting the rod to the tank;
- handle on the bar for easy portability;
- button or lever to start spraying;
- safety valve to reduce overpressure;
- a nozzle mounted in the boom to create a specific shape and length of the jet;
- a filter at the filler neck and inlet of the sprayer to trap large particles and impurities in the supply fluid.
On some wide and long rods, several nozzles (up to 3) can be installed at once, which will help speed up the processing of plants. Many sprayers come with extensions to change the length or shape of the hose, replaceable nozzles that expand functionality, change the pressure, intensity and shape of the jet, a pressure gauge to control the pressure of the liquid supplied to the sprayer.
The principle of operation is based on the use of the difference in pressure between the environment and the jet of the cannon, which helps the liquid to easily cover the distance to irrigate the surface. By holding the barbell in weight, you can direct the flow of fluid. Some models have a rotating nozzle to adjust the droplet size. Of the additional functions, a hose extension, a drip irrigation device, and a sprayer are popular.
The principle of operation is based on the use of the difference in pressure between the environment and the jet of the fire hose
The advantages of manual knapsack sprayers are the low cost for the basic configuration, which is always useful at the summer cottage, the simplicity of the design. Disassembly and assembly is straightforward.The straps included in the device are easily adjustable for any height and weight of a person. The only drawback of the product is its large weight.
Knapsack sprayer model varieties
Palisad sprayers are divided into small (up to 2 liters), medium (with a capacity of 3-5 liters) and large (up to 10 liters). The former are advisable to use for small areas, greenhouses, houses with indoor plants. The average size of the product is used for plots of 300 m² for spraying shrubs, seedlings, low trees. Large tanks are suitable for 500 m².
Depending on the model, sprayers are divided into manual and cordless. The first type is characterized by a separate container with compressed air, which is metered into the tank with the sprayed preparation. If the excess pressure ruptures the air chamber, the solution will not spill.
The Gardena manual knapsack garden sprayer is carried on the back, equipped with a pair of shoulder straps and a belly strap to prevent it from shifting when tilted. The air pump drive is a hand-operated side lever. As a result, continuous processing is achieved: one hand sprays the solution, the other pumps air into the tank. The volume of the latter can reach 20 liters. It is difficult and tedious to process plants with such a device, because you have to constantly pump up the air. But in comparison with pump units, it is not necessary to stop the movement of liquid for this.
Gardena manual knapsack garden sprayer
The design of the Kwazar and Orion manual knapsack sprayers is simple. They look like a metal or plastic container in which a piston mechanical pump is built. The boom fluid hose is attached to the tank outlet. Many models of Kvazar or Geolia hand-held knapsack sprayers have been designed to allow the lever to pressurize under the arm of left-handers, which is very convenient.
The weak point of the inventory is the place where the lever is attached to the body. There should be a plastic piece between the handle and the body to serve as a gasket. Without it, the case may crack on the very first day. The advantage of hand-held models over battery-powered ones is energy independence. They don't need a constant source of electricity for charging, fuel, or batteries. The Gardena (Garden) sprayer is absolutely silent, does not require additional maintenance of the units. After processing, you just need to rinse the container, the bar, the nozzle and the nozzles.
Cordless sprayers Grinda have many advantages over manual ones: a powerful battery allows you not to use charging for a long time, a convenient design and an ergonomic tank shape that does not let your back get tired, filters for liquids. If necessary, you can equip the device with additional accessories, extension cord. The equipment is equipped with automatic pressure sensors that are triggered when the electric pump fails.
Several types of nozzles are used in the Solo backpack power sprayers:
- homogeneous spraying is possible due to the nozzle on the boom, which allows processing of small, low plants
- conical provide 2 nozzles for insect and ground pest control;
- 3 nozzles and 4 holes are suitable for tall plants, trees.
If the battery additionally increases the weight of the machine, and overcharging forces you to take constant breaks, you can use a sprayer running on mains. Its disadvantage is the limitation of the processing radius associated with the length of the wire. The Lux gasoline sprayer has greater autonomy, which sprays liquid with a narrowly directed jet or a fine-dispersed wide-diameter torch.
The power of the gasoline appliance ranges from 1 to 5 liters. with., volume - 15-30 liters.The filling of the tank is controlled by an indicator, it is possible to adjust the speed and intensity of the spray. The gas powered garden knapsack sprayer allows you to water plants, spray trees, fertilize garden crops with liquid or powder.
How to prepare a backpack sprayer for use
During work, you need to use personal protective equipment
Knapsack sprayers Gloria are used for processing trees and crops, disinfection of premises. For large areas, a model with a large tank and a convenient mount is suitable, for treating trees - with a spot spray. If powder is used, a sprayer that can spray it should be selected.
When preparing the Solo Knapsack Sprayer, fill its tank, close the lid tightly, and read the instructions for the chemical solution. Before spraying, the soil is moistened, processing is done in the morning or evening.
In the case of the Gloria petrol sprayer, the mixture must not be diluted directly in the tank. First, it is bred in a special container, and then poured inside. For the fuel mixture, use unleaded alcohol with octane (AI-92), two-stroke engine oil in a ratio of 1:50 (5 liters of gasoline per 100 ml of oil). When using water cooling, oil is prohibited. During operation, you should regularly check the elements for serviceability and leakage, rinse the parts after each treatment, monitor the serviceability of the strainer.
When using a battery pack sprayer, first you need to check the tightness of the tank: fill it with water and spray the liquid for 2-3 minutes. For convenience, it is worth adjusting the straps - first pass one hand, then the other, pull up to a comfortable position of the tank on the back and fasten the connecting loop.
The tank must not be filled up to the very neck. If the voltage in the battery drops to 10 V, you need to put it on charge, otherwise the device will turn off. All nut tightening and connection procedures are done by hand to avoid thread stripping.
A knapsack sprayer is a must-have item for a gardener and gardener. Buying such a unit will greatly facilitate the work. However, when choosing a technique, you should be guided by the scale of the site and the characteristics of the equipment that are suitable in one case or another.
