Check the dilutor syringe monthly for damage or wear. Replace it, if necessary.


  1. Remove the screw fixing the plunger to the valve drive .
  2. Turn the syringe counterclockwise out of the valve.
  3. Remove the old syringe from the dilutor.
  4. Remove the old syringe
    Remove the old syringe
  5. Screw the new syringe clockwise from below into the lower port of the valve.
  6. Pull the plunger of the syringe out, until the hole in the plunger is level with the hole in the valve drive.
  7. Fix the plunger with the screw to the valve drive.
Attach the new syringe
Attach the new syringe