Comparison Sequoia SBS1.5Li vs Sequoia SBS5Li

The design of the sprayer primarily determines how it is transported during operation. According to this parameter, manual, shoulder, wheeled and combined types of construction are distinguished, here are the features of each option:

— Manual. The most compact type of sprayers: during operation, the device can be held entirely with one hand. Such models usually look like a tank in the form of a bottle or can with a volume of up to 3 – 3.5 liters (and more often up to 2 liters), over which a spray gun is installed. A pump or lever drive is used for operation (see "Type"), although there are also battery options; and 360° spraying can be provided for convenience in hard-to-reach areas (see below). Anyway, hand sprayers are mainly designed for small jobs that do not require larger and heavier devices. In addition, such a sprayer may be the best choice for cramped conditions, where it is impossible to turn around with a shoulder-mounted and even more so wheeled unit.

— Shoulder. Sprayers of the "middle weight category", designed to be carried using a shoulder strap. Usually such a unit is worn on both shoulders, in the manner of a backpack; the exception is pump-action models (for more details, see "Type"). Anyway, this method of transportation is very practical and versatile. It is perfect even for fairly powerful and, as a result, massive sprayers —...the only exceptions are the heaviest models with a tank volume of more than 30 liters. Actually, most modern atomizers are made just shoulder-mounted.

— Wheeled. Sprayers equipped with wheels and moved only in this way. This method of movement is the only one available for the heaviest and most performant units with large tanks that are too heavy to be carried on the shoulders. However, there are also comparatively small and light sprayers with wheels — they are mainly intended for cases where high power is not needed, but shoulder-mounted models are not suitable for one reason or another (for example, if health problems prevent the user from carrying heavy loads ).

— Shoulder / wheeled. Models that allow transportation by any of the two methods described above are optional. In fact, these are shoulder models, complemented by wheels (or the ability to install wheels); this design provides additional convenience and versatility. For example, when working in open areas, it is more convenient to carry the sprayer on your shoulders, and in a greenhouse with narrow passages in which you can’t turn around with a “backpack” on your back, you can put the device on wheels and roll it along. However, such features are not required so often, while they affect the overall cost of the device. Therefore, this option has not received much distribution.

The nominal volume of the sprayer tank. Usually, in this case, the working volume is indicated, and not the full capacity (“for the cork”).

The more capacious the sprayer is, the more work can be done with it without refueling. On the other hand, a large volume accordingly affects the price, dimensions, and most importantly, the weight of the unit (and not only in a filled, but also in a “dry” state). Therefore, even with large volumes of work, it is sometimes more rational to use a relatively small unit, refueling it several times.

Detailed recommendations on the optimal volume of the tank for a particular situation can be found in special sources. With regard to specific values, in the most compact manual sprayers (see above), the capacity does not exceed 2 liters. Tanks for 2.1 – 5 liters can be found both in hand-held devices, and in pump-action and battery models (see "Type") with a shoulder carry. Sprayers for 5.1 – 10 liters are almost all made shoulder-mounted, the capacity of gasoline units actually starts from 10 liters, and the most capacious modern sprayers have tanks of more than 15 liters.

The material from which the complete spray tube of the sprayer is made.

— Plastic. The key advantage of plastic over other materials used for spray wands is its low cost. In addition, this material is chemically inert and does not corrode, and also has a low weight. On the other hand, the rigidity of the plastic is not very high, which is why such tubes tend to bend, sometimes even under their own weight.

— Aluminium. Aluminium alloys combine good strength and lightness, such a tube is easy to work with, and it takes quite a strong blow or pressure to bend it. On the other hand, aluminium is expensive.

— Brass. In addition to strength and reliability (including resistance to bending), brass is notable for its excellent resistance to corrosion. The disadvantages of such tubes are the high price, as well as the rather large weight.

- Stainless steel. "Stainless steel" is notable primarily for its high strength and rigidity, which is superior to other materials, despite the fact that this material is relatively inexpensive. However, such tubes weigh much more than aluminium or plastic ones.

- Copper. According to the main operational properties, copper pipes are similar to brass ones: they are strong, reliable and durable. On the other hand, such tubes are relatively expensive and do not have fundamental advantages over the same "stainless steel". Therefore, this option is rarely found.

A device that allows you to fix the trigger (switch) of the sprayer in the pressed position. This is especially convenient for large volumes of work: holding the trigger manually for a long time is rather tiring, and the continuous watering lock allows you to avoid unnecessary stress on your hands.

Note that this feature can be found in all types of sprayers (see above), including lever ones — many models with this type of action are equipped with both a pumping lever and a separate trigger that must be kept pressed during operation.

The presence of a measuring scale in the design of the sprayer.

Usually, such a scale is applied directly to the tank wall, and the tank itself is made transparent or translucent. Other design options are also possible — for example, a water metre tube with a scale built into the opaque wall of the tank. Anyway, the measuring scale allows you to determine with a fairly high accuracy how much chemicals are left in the sprayer, and without having to open the tank.

The presence of a tube clamp in the design of the sprayer.

Such a latch is a set of special clips, usually installed directly on the tank. It greatly simplifies the storage and transportation of the device: the handset, usually, is placed as compactly as possible and at the same time securely. Yes, and during breaks in work, this feature can come in handy — fixing the tube in the retainer is more convenient and safer than putting it on the ground, holding it in your hands, etc.

The total weight of the sprayer. Specified without taking into account the liquid or powder in the working tank; at the same time, for battery models (see “Type”), usually, the weight is given with a complete battery, and for gasoline models, on the contrary, “dry” weight, without fuel in the tank.