Got a call from a friend that said when she turned on the sink faucet dirt and a little water with little pressure came out.She turned it off and called me.I asked her if she had water running somewhere that would be depleting the well.She found that a sprinkler system was running on a timer but the timer probably is not working.We turned it off and let the well sit overnight and now there is water and pressure in the house.I RAN THE FAUCETS TO CLEAR OUT ANY DEBRIS IN THE LINES but the noticed at the well tank that every time the tank called for the pump to go on the gauge did not move from cut off or cut on.Do I need to drain the tank and put air into it and then fill it or why is there no gauge reading even though I here the pump running when it is being called.Is the bladder shot?