I just had work done at Chappell Tractor in Milford N.H. One of the tasks was to furnish & install the "third valve" & install rough plumbing hoses ( furnished by me) for a heater to be connected when I install the cab. Well here we are removing the rough plumbing , that was not done per the instructions in the Curtis installation & owners manual pages 12& 13 of 27 & reinstalling per instructions. I am not a happy camper.