My washing machine will fill up with water and do this continually, it will not stop to agitate anymore. Also as it is filling up it is draining at the same time and our water bill has jumped up. Can you please let us know what we need to look at or replace? I have 3 kids and need to be able to do the laundry and cannot afford to go to the laundry mat. Thanks for any help that you can give me.