I have a shallow well with a 1 hp jetpump and a bladdertank for my house. A couple of years ago I had a new pump installed and he also put the pressure tank in a different spot. After that the pressure in the house was a little lower than usual. The pressure switch is 30/50 and pressure tank 28 psi.
I will include some pictures, there is a softener but that is bypassed since I am replacing it.
The filter you see is a Rusco sediment filter that I flush weekly since I have a little sand issue.
Is the tank installed correctly??