Everyone who lives on a well has a pressure tank either in the basement or outside in a pit or pumphouse. The most common type and brand is Well X Trol which is manufactured by Amtrol. The average household has either model 202 or 203. One thing that alot of homeowners on well water don't realize is that the well tank does not last forever. One of the most common problems is rusting on the bottom of the tank which can lead to pinhole leaks and a flooded basement. Another major problem is a ruptured bladder the bladder can get a tear and the water will go from the bottom of the tank to the top of the tank displacing the air charge and causing a drop or fluctuation in water pressure. Thes are things you need to get checked out by your plumber or water treatment professional. If you find that you do need to replace your well tank the well x trol tanks are rated #1 in the industry there are fairly simple to install and are readily available. We also offer constant pressure well tanks by amtrol which will give your greater pressure than a standard well tank as well as constant pressure. You can also convert your present well tank and pumps to a constant pressure system using the subdrive 2W by franklin. If you any questions or concerns please do not hesitate to call us at 800-460-5810 8am-8pm 7 days a week.