The purpose of the utility model is a pre-watering system of an aquarium filter, where the filter contains a container (1) of a canister type with a cover (4) attached to the housing, having filtering inputs, and the cover (4) is supplied with an inlet shortcut (5a) and an outlet shortcut (5b) with valve assemblies, an inlet valve assembly (6) and outlet valve assembly, as appropriate, and where the filter also includes a manual pump inlet system (7) with a retracted piston (8) and a cable (9) providing water from the inlet manifold (5a) to the manual pump (7) and filter inserts, as appropriate,that the piston (8) is mounted in the cap (4) at a sharp angle in relation to the floor area.
