INSTALLATION AND EARTH / GROUNDING INSTRUCTIONS
Our tests have proven that earth / grounding of the cylinder is essential to ensure that the P.T.H. device will operate properly.

To service a water system, the P.T.H. has its case well grounded by :
- Direct contact with the earth in an underground installation.
- The grounding wire shuld be connected to a copper or galvanized steel pipe in an above ground
   installation.
- A gronding wire should be connected to the earth connection of the P.T.H. and to an earth ground
   point for above ground installation in P.V.C. or plastic pipe.