I have a Well Water System with a Small Black Balance Tank. Maybe about 2 1/2 feet tall. The System is working fine, but I think something is wrong with my Balancing Tank. When I turn on the tap or flush the toilet, the water pressure is slow and the pump comes on right away and has to run almost the hole time I am running the water. I don't know what kind of Tank it is. Do you think it needs balancing ? How do you do it ? Can I do it myself ? Do I need a new Tank ?