I have a 9 year old home with a 5" well. Recently I noticed that when the pump starts working, the preassure guage begins to move toward the higher reading. When it gets to about 40 lbs, I hear water running into the tank. It sounds like someone is holding a glass of water and pouring in into an empty pail. After a few seconds the noise stops, and the preassure guage jumps about 5 lbs and a few seconds later it builds up to 50 lbs, and as it shuts off I hear the water fall noise again. Can I just put some air in the tank? If so, how mush preassure is the right amount? If not, should I be calling the well people to come over and replace the tank? I assume that this noise, which just started up, is caused by something going wrong in the tank, or some type of leak, however, I hear no air leaking when near the tank. Thanks in adavnce for your assistance

We currently pump from a pond, thru 2 filters and then a UV light on to the pressure tank and then the house. Today we repaced our burned up pump (or so we thought). It turns out that the filter which has been installed for only 2 months was so plugged that the water couldn't get through. This is a good filter system. I'ts not a cheaper one. Pura UV-3 is the brand. My question is what can I install before the filter system that will remove the alge that clogged it up. Yes there is a filter in the pond. Would a sand filter that we can set to regenerate work??? Thank You starks