Hello, first time here. I am looking for suggestions for a deep well pressure tank. The background is when I purchased our cabin about 8 years ago there was a galvanized air over water tank with an air volume controle valve and a bladder tank after the galvanized tank. The galvanized tank developed a leak after a couple years and I replaced it with a wellmate epoxy lined steel tank with a air volume controle valve. Now this tank has developed a leak so I bypassed the tank for the time being. Problem now is the amount of air in the system, so I need to install another tank to remove the air. Am I correct that the well pump purposly adds air? What I am looking for now is a composit air over water tank that will have a air volume controle valve of sorts. What I am thinking is the WellMate WM-HP-15QS0/ HP-8SQ or something liike that. If I am way off base let me know. If you have suggestions on a tank please let me know.