Repair Man

We have a couple of guys that come into the restaurant every afternoon for coffee.  They started telling me this week that our machine is having a problem and was not brewing a full pot of coffee.  It was nearly down to a half a pot.  That was not good.  This morning I had a little time so I took it apart and cleaned out some calcium build up inside the tank.  All looked well and I put it back together and tested it.  Well, I managed to mess something up because it wouldn't stop running.  The water just kept running.  I didn't have time to pull it all apart and figure out what was wrong so I shut it down and pulled up an old coffee maker from the basement.  I thought it was fine but then came in tonight to hear waitresses complaining and reports that the coffee guys didn't like the coffee.  It is the same stuff but I guess they have sophisticated taste buds.  Well, I couldn't have the coffee guys upset with me so I tore open the machine once again.  I isolated the problem and after pondering it for a minute I figured out what to do.  After getting the water up to temp I brewed a pot of nothing.  Well, it worked and the water shut off.  So I fixed the machine only to break it but then fixed it again.  It was a good experience.  Well, must sleep now.  Feeling way tired and it is now 1 AM.