Postby 2209patrick » Fri Oct 19, 2007 5:57 pm
Hello Hose_dk.
This was not originally meant to hold water to water plants.
However, probably would work well for that purpose.
Difficult to respond to your first guess, oil.
In a way you are close, but this is not what you were thinking of.
The English word oil has different meanings / uses.
Pat.
.