I have a jet pump with an 80 gallon pressure tank, no bladder. The feedback device is all metal (at my other house it is clear plastic). It appears to have a slight leak on the feedback device since there is a lot of minerals and rust on it.
The pump doesn't seem to be acting right, at least in comparison with the similar setup at our other house; when the water is turned on, in just a few seconds the pump kicks on but only runs for about 8 seconds. This repeats over and over until the usage is stopped. I tried to drain the tank (thinking it was waterlogged) but it didn't change anything. However, I'm not sure how much of the tank I was able to drain. The flow rate seems to be fine, of course the pressure rises and falls each time the pump cycles.
The pump doesn't seem to be acting right, at least in comparison with the similar setup at our other house; when the water is turned on, in just a few seconds the pump kicks on but only runs for about 8 seconds. This repeats over and over until the usage is stopped. I tried to drain the tank (thinking it was waterlogged) but it didn't change anything. However, I'm not sure how much of the tank I was able to drain. The flow rate seems to be fine, of course the pressure rises and falls each time the pump cycles.