There ought not be any water in the bottom when the clothes are done. Since the unit is 12 years old the belt may be bad which is pretty easy to fix. No tools needed. You have to lean that monster over to put it on. If the belt looks decent and the pump bearing turns fine I would say the thrust washer may be bad. Repairman has a fairly simple method for replacing that.
Should any water remain in the unit when the wash has been complete.
This machine was purchased new from Sears 12/13/2006. Have receipt in hand