I had a new well pump installed a couple years ago and after about a year my water softner started leaking, I had two professionals come out and both said it could not be fixed because of the age of it. I opted to by-pass the water softner because I could not afford a new one.

Here I am about 9 months later and have very little water pressure throughout the house.
Could this be caused from calcium build up in the pipes in a 9 month period?
I have a blue air tank which I figured is to control the water pressure, I checked it the other day and it had 52 PSI, is that sufficient? Any help would greatly be appreciated. Thank you!