Pressure tanks for well system Home › Forums › Public Forums › General Plumbing › Pressure tanks for well system This topic has 3 replies, 4 voices, and was last updated 24 years, 7 months ago by daveroconn. Viewing 3 reply threads Author Posts 30 Apr 2000 at 4:17 pm #272907 Anonymous What is the proper pressure for the tank once the water pump is turned back on? Is it 28 PSI or 50 PSI with a 30/50 pressure switch? If water comes out of the air valve on the top, does that mean the tank is bad? 30 Apr 2000 at 10:50 pm #286513 Art_xyzParticipant If you have a tank with a rubber bladder and you get water out of the air valve, the tank is bad and needs replaced. 1 May 2000 at 1:47 am #286514 kenny bParticipant the correct pressure setting is 2lbs. below the on setting. 2 May 2000 at 3:04 am #286515 daveroconnParticipant Steve, that tank is dead throw it out. Get a new expasion tank. Author Posts Viewing 3 reply threads You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In