A method for charging a washing liquid in a laundry washing machine comprising a washing compartment housing a rotatable drum, the drum being designed to contain the laundry and comprising: a front frame which delimits an opening for loading/removing the laundry, a rear end wall opposite the opening, a perforated side wall extending between the rear end wall and the frame, a plurality of holes in the perforated side wall placing the inside of the drum in fluid communication with a zone of the washing compartment, outside the drum; the method comprising the step of implementing a first iterative procedure comprising, in the following temporal order, at least the following steps: - charging a washing liquid into the drum, the washing liquid charged into the drum being at least partly absorbed by the laundry inside the drum, while washing liquid, if any, charged into the drum and not absorbed by the laundry flows through said plurality of holes in the perforated side wall into the zone of the washing compartment outside the drum; - checking with a level gauge that a first configuration has been reached where, compared to a predetermined reference level, there is a predetermined increase of the level of liquid in the washing compartment on account of the outflow from the drum of the liquid not absorbed by the laundry; a negative result for this check causing the first procedure to be repeated until the check returns a positive result; wherein the step of charging a washing liquid into the drum comprises the following steps: - feeding the washing liquid into said zone of the washing compartment outside the drum, until the level in said zone reaches a first predetermined level, located completely under the drum; - pumping the washing liquid from said zone of the washing compartment outside the drum, to the drum until the washing liquid in said zone of the compartment outside the drum reaches a second predetermined level less than the first predetermined level; the step of checking that the first configuration has been reached returning a positive result if the level of the liquid in said zone of the washing compartment outside the drum is greater than or equal to a third predetermined level which is greater than the second predetermined level by a preset quantity. - charging a washing liquid into the drum, the washing liquid charged into the drum being at least partly absorbed by the laundry inside the drum, while washing liquid, if any, charged into the drum and not absorbed by the laundry flows through said plurality of holes in the perforated side wall into the zone of the washing compartment outside the drum; - checking with a level gauge that a first configuration has been reached where, compared to a predetermined reference level, there is a predetermined increase of the level of liquid in the washing compartment on account of the outflow from the drum of the liquid not absorbed by the laundry; a negative result for this check causing the first procedure to be repeated until the check returns a positive result; - feeding the washing liquid into said zone of the washing compartment outside the drum, until the level in said zone reaches a first predetermined level, located completely under the drum; - pumping the washing liquid from said zone of the washing compartment outside the drum, to the drum until the washing liquid in said zone of the compartment outside the drum reaches a second predetermined level less than the first predetermined level;