OK so I'm convinced I need a new tank.
I have as previously posted a 110V submersible pump that I "SUSPECT" is 1/2 hp. (When it goes I will convert to a 3/4 hp 220V) I use a 30/50 switch (see pump post). There are only the two of us and little lawn watering. 2 baths, washer, dishwasher etc. The current bad tank is a 36gal 82 gal equivalent. Is this the right size, too big? How do I determine? Do I use enough water to need a CSV?
Is there a calculation formula one can use and understand?