I have a maytag top load washer, about 15 years old. Once the washer fills, water still drips from the fill slot through all cycles, including the spin cycle. Even when the washer is turned off, it still drips.
underneath the agitator is a graphite seal ring and nut that seals the inner tub and the outer tub. a suitable spanner wrench or a 6 inch channel lock plier will remove this locknut. replace the seal.