Abstract: A mixing and spraying apparatus for liquids, optionally for powder and liquid, comprising two branch lines on a conduit conveying water under pressure. One branch line passes tangentially through the tank wall into the mixing tank and causes the water in the mixing tank to rotate in a vortex to mix with the added liquid or powder that is introduced into the top opening of the tank in batches or continuously by means of suitable equipment for this purpose. The other branch line passes radially into the tank through the lower wall portion of the tank and terminates in a nozzle, which together with an open end of an outlet conduit forms an injection pump for conveying the admixed components from the mixing tank to a spray hose and nozzle that are connected to the outlet conduit.

Abstract: A portable folding water tank which is reversible and can present one of two colors for military camouflage purposes. The tank has a shape of a truncated cone and includes filler pipe means at the bottom. A cover which can also serve as a carrier for the folded tank is also provided.