Maytag dishwasher

I have this maytag performa dishwasher and was wondering if there is a way to clean out the drain in the bottom. It seems to be leaving sediment and debris in the cups and dishes in the top rack. I don’t know if this is because we have hard water or if it is because of build up of sediment in the bottom. Would like to know how to clean it out if possible.
Thanks
Eric

Still looking for any guidance on this dishwasher???