A portable apparatus for borating a continuous flow of water, comprising: • dispensing mechanisms (11,12), provided with the corresponding crushers (31, 32) and first feeders (41,42), • a second feeder of the components that have to be inserted into the continuous flow of water, • a flow gauge and/or regulator for matching the concentration of products supplied into the water, • a reactor with a mechanical mixer; • pumping means (4,5) for taking a mix formed by the components and water to the mixing reactor; • pumping means for discharging the mix for its outside usage; characterized by being made up of two units formed by independent items: • a first unit, which comprises the dispensing mechanisms, and a loading device for said dispensing mechanisms, and • a second unit, comprising the reactor with the mechanical mixer, the pumping means (4,5) for taking the mix formed by the components and water to the mixing reactor and the pumping means needed to discharge the mix for its outside usage; where the mechanical mixer includes a recirculation line; each of these units being set in a carrying cage or container, and are able to be interconnected by means of the corresponding lines; the cage or container which forms the first unit is made up two parts: • a lower part, which holds a mixing hopper, and • an upper part which holds a cage or container roof, and which can be telescopically lifted by mechanical, hydraulic pneumatic or electrical means, from a first transport position to a second, operating position. • dispensing mechanisms (11,12), provided with the corresponding crushers (31, 32) and first feeders (41,42), • a second feeder of the components that have to be inserted into the continuous flow of water, • a flow gauge and/or regulator for matching the concentration of products supplied into the water, • a reactor with a mechanical mixer; • pumping means (4,5) for taking a mix formed by the components and water to the mixing reactor; • pumping means for discharging the mix for its outside usage; characterized by being made up of two units formed by independent items: • a first unit, which comprises the dispensing mechanisms, and a loading device for said dispensing mechanisms, and • a second unit, comprising the reactor with the mechanical mixer, the pumping means (4,5) for taking the mix formed by the components and water to the mixing reactor and the pumping means needed to discharge the mix for its outside usage; where the mechanical mixer includes a recirculation line; each of these units being set in a carrying cage or container, and are able to be interconnected by means of the corresponding lines; the cage or container which forms the first unit is made up two parts: • a lower part, which holds a mixing hopper, and • an upper part which holds a cage or container roof, and which can be telescopically lifted by mechanical, hydraulic pneumatic or electrical means, from a first transport position to a second, operating position. • a first unit, which comprises the dispensing mechanisms, and a loading device for said dispensing mechanisms, and • a second unit, comprising the reactor with the mechanical mixer, the pumping means (4,5) for taking the mix formed by the components and water to the mixing reactor and the pumping means needed to discharge the mix for its outside usage; where the mechanical mixer includes a recirculation line; each of these units being set in a carrying cage or container, and are able to be interconnected by means of the corresponding lines; the cage or container which forms the first unit is made up two parts: • a lower part, which holds a mixing hopper, and • an upper part which holds a cage or container roof, and which can be telescopically lifted by mechanical, hydraulic pneumatic or electrical means, from a first transport position to a second, operating position. • a lower part, which holds a mixing hopper, and • an upper part which holds a cage or container roof, and which can be telescopically lifted by mechanical, hydraulic pneumatic or electrical means, from a first transport position to a second, operating position.