You might be right, this is a new to me house so I will have to look further into that. Right after closing I went to the house to find the old Gould pump had died, when they did inspections they didn't prime the pump first (foreclosure so the house had been sitting for a while) and apparently burned out the pump while it was priming and it lasted long enough to get the inspections done. After that got fixed I found all kinds of leaks in the plumbing, got them all fixed but it was a rough first couple of months. It has a 20 gallon storage tank right now and it has pressure so the bladder is fine, will have to see if I can squeeze a bigger storage tank through the crawl space door.
A 20 gallon tank is mighty small (typically 5 gallon drawdown rating at 40-60 psi), but something still isn’t adding up, here. If the tank is indeed good, then I suspect it’s adjusted to the wrong pressure.
Most residential well pumps are chosen to be 10 - 12 gallons per minute at rated depth. A 20 gallon storage tank is going to have a drawdown of 5 - 7 gallons depending on specific model and what pressure range you’re running (20-40 psi will get you more drawdown than 40-60 psi). Either way, you’re looking at a typical fill of a half minute, if the system is set up and functioning correctly. Ten seconds is just way off the chart.
List as much of the following as you can figure out, and we can probably get to the bottom of this:
1. Pressure tank model no.
2. Drain well tank and get a pressure reading on the valve on top. Make sure you’re using a gauge that puts the reading in the 25% - 75% on the dial, so it’s accurate.
3. Well pump info: rated GPM at depth and pressure, or well pump model number and depth.
4. Pressure switch rating, at a minimum. If you’re actually able to measure water pressure at switch in/out, that’s even better.
Based on my very limited experience (my own few houses), I’d be willing to bet 75% of wells are set up wrong, which is a crime. You want that drained pressure tank bladder charged to within 2 psi of your switch cut-in setting, to achieve proper draw-down rating. This is pretty easy stuff to get right.