"Butch Davis" wrote in message
.net...
The previous few comments is why I asked about impressed current cathodic
protection. Hard for me to imagine an underground steel tank full of LPG
without a system. Certainly if the tank rusted through the vapor would
most likely vent to the surface near the tank. However, there is too much
possibility that the vapor would travel along the supply line to the
residence for me to want to do it.
For liability reasons I suspect Harry's gas supplier has at least some
kind of sacrificial anode protection installed on the tank. Perhaps there
is a requirement to remove and inspect the rented tank at some interval?
Or perhaps they are simply changes out every 10 or so years???
Butch
http://www.anodesystems.com/pro1.html
Eisboch