reservoir 70 there is arranged a lowered upper surface 81 comprising an orifice 82 through which a washing product can be delivered to said reservoir 70 wherein said orifice 82 is defined by a perimetral skirt 83 it is important to emphasize that the main function of said cover 80 is to prevent the washing product from eventually escaping from the edge of said reservoir 70 during rotation of the washing compartment 6 once a centrifugal force created by the equipment mainly during centrifugation steps causes the product to accumulate against the upper peripheral region of the reservoir such that with no appropriate protection product losses may occur moreover it may happen that the height of the perimetral skirt 83 of said cover 80 is used as a dosing device through level indication to guide users with respect to the product correct amount to be delivered into the interior of said reservoir 70 to optimize its use and equipment operation the valved dispensing system of the present invention further comprises a lower reservoir 90 disposed beneath the reservoir 70 wherein said lower reservoir 90 comprises a slit 91 in the frontal wall to provide fluid communication between the interior of the lower reservoir 90 and the washing compartment 6 it is important to point out that the use of said lower reservoir 90 is not essential for operating the dispensing system of the present invention however its use is advantageous because it avoids that the dispensing of washing product occurs directly over the washing load which could cause stains on clothes being processed in addition to this protective aspect said lower reservoir 90 also comprises a chamber for pre diluting the product in water which also favors its use and.