Agricultural spraying system using a flushing liquid as active product carrier liquid

An agricultural spraying system, comprising:

• at least one reservoir configured to contain an active product, the reservoir being connected to a first portion of a first downstream duct configured to convey the active product from the reservoir to at least one mixing area of a spraying assembly of the spraying system;
• a first tank configured to contain a clear liquid, the first tank being connected to a first upstream duct configured to convey clear liquid from the first tank to the reservoir so that the clear liquid flushes the reservoir, forming a grey liquid from residues of active product mixed with the clear liquid;
• the system wherein the first downstream duct comprises a regulating element configured to direct, by means of a second portion of the first downstream duct, the grey liquid to at least one second tank configured to contain the grey liquid, the second tank being connected to a second downstream duct configured to convey the grey liquid from the second tank to the mixing area upstream of the spraying assembly, such that the grey liquid provides the function of carrier liquid in which the active product is mixed, the grey liquid incorporating the active product being configured to be sprayed by the spraying assembly.