Folks:

"He who argues with a fool makes two"

For everybody's benefit but the silly goose's, the reason we must now
supplement the water-pipe ground with a driven electrode is because
the city might use plastic pipe or dielectric unions. An all-metal
city water system, miles of metal pipe full of water buried in damp
ground, is a very very very good ground, but we can't always depend
on it staying that way.

G P