Galvanization is generally pretty good protection against soil and soil
moisture. Guardrail posts are galvanized, though generally a heavier
coating, and last virtually forever, even though they have been driven
through base stone, and soil. Soil auger anchors for telephone poles are
also long lived.
--
RichToyBox
http://www.geocities.com/richtoybox/pondintro.html

"Angrie.Woman" wrote in message
m...

"RichToyBox" wrote in message
...
The zinc that is used in the galvanization process is fairly insoluble at
the normal pH of water, and therefore should last a long time. If the
zinc is dissolved, it can be harmful to the fish when the levels get
high. If the bottom is not kept clean, layers of rotting leaves will
become acidic, the galvanization will be removed and the metal will
corrode.


What about the other side of the tank that is on contact with the ground?

A