Maytag MDB9600A Jetclean II Built-in Dishwasher "tablet sticking dish washer" Questions

dish washer soap does not dissolve, whether or not I put the tablet or the pillow into the soap dispenser. Is it the soap dispenser door? Would hard water buildup create low water pressure so the soap

by not buying ultra generic powder. Dish washer does not drain. Checked for food being stuck anywhere. removed wash arm and plastic housing and checked for any type of blockage. Dishwasher hardly used