Replace the cartridges in the filter housing. If you have a lot of sediment in your water this should be a scheduled maintenance item. Clean the aerators on your faucets. Buy some new ones if they are really crapped up. What is your well pump pressure set at. Go out and watch the gauge on the system at the pressure tank. See what the high and low pressure points are. You may be able to boost system pressure at the control. You say this is a 3" line. I think the 3" would be a soil pipe, not a water supply.

I ma looking into a Grundfos Constant Pressure pump for my house. I haven't decided and haven't priced it out yet, but in extreme circumstances it would be an option.

I didn't get an email alert of a response, sorry...

For 15 bucks, I replaced the pressure switch, but that ws not the culprit. With the service line valve closed, the the max pressure is about 15 lbs. The pressure switch is a 30/50, so the pump is on all the time. Not good. Power is off now...

The pressure tank is not heavy, or water logged, so it would seem to be fine.

Possibilities:

1. The pump is failing
2. The vertical casing from the well to the surface is compromised
3. The well is lack sufficient water

Given the drought, I fear #3. The massive amount of sediment in the filters might also be a sign of such undesirable situation. That said, with a creek just 75 feet way, I would like to think that supply might not an issue...

As bad as it sounds, good news would be that I need a new submersible pump.