Ok In this case the problem here is the pump Lisa, it likely has a bad impeller, This is the part that is inside that pushes out the water, To get to the pump to replace it you would need to take the small panel out at the bottom, there should be a couple of screws along the lower lip.
Once you have the panel off you would need to disconnect the drain pipes and then slide the pump out, Install the new one in reverse order.
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I recommend you buy the pump from the link above since they give a full year warranty on the part.
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