My job is commerical property management and just a few minutes ago I took on the management of a service station with a 2,200 litre and 14,700 litre capacity underground fuel tanks.
Wading through the paperwork in preparation for entry into my software, I came across test results for these tanks. Apparently a tank is considered acceptable with a "water intrusion threshold" of up to 0.38 litres per hour (that's almost 8 litres per day), and these two tanks at time of testing (passed by the way) had 45mm and 30mm of water in them.
So, the thought is that this water has to be removed from time to time to prevent excessive contamination of the fuel. Imagine how quickly the fuel would spoil if this regular maintenance was not carried out.
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If it moves, shoot it, if not push it, if it still doesn't move, use explosives.
Nothing happens in isolation - it's called "the butterfly effect"
Mors ante pudorem
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