At present, there are mainly three types of manual sprayers on the market. The first type is a 3WD-0.55 (single-tube) manual sprayer. All components are made of copper and the price is about RMB 30. However, one bucket is required for use. Now it is gradually The second type is 3WB-16 (worker-pearl-16 type) manual sprayer, made of fiberglass or plastic, the price of 15-20 yuan, due to the design is unreasonable, spray parts and kits are easy to leak liquid, causing User poisoning and environmental pollution have now been replaced by the third category; the third category is the 3WBS-16 (Guardian, City Under-16) manual sprayer, spraying parts and medicine boxes made of plastic, a price of about 70 yuan The advanced design of the whole machine is reasonable, and the reliability and sealability are greatly improved. It is a widely used machine at home and abroad, and the supply of parts is sufficient. The farmers can dismantle and install it themselves. Please pay attention to the following points when purchasing this type of manual sprayer:
First, to check the random distribution of various accessories, filter is complete, and the correct installation and use, this can greatly reduce the failure and nozzle blockage.
Second, some models are equipped with a variety of nozzles, these nozzles have different uses, especially herbicide nozzles, when used can greatly improve the weeding effect, saving pesticides.
Third, the use of components to be properly installed before use, in particular, should pay attention to sealing the interface to prevent excessive force ambassador interface rib damage, resulting in liquid leakage.
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