Re:The Cost of Gasoline
by landemva on Sunday June 25, 2023 @09:59PM
(#36474839)
The tanks for fresh product (gas/diesel) which I saw had 220v electric pumps and were outside. Some had meters like a gas station to track usage to a machine. Fresh oil tanks were pneumatic. Used oil tanks were pumped out by the service truck. OSHA regulated.
Free-standing tanks for fresh product which are in rooms (drifts/bays) underground (mines) seem to be pneumatic with small tanks using a rotational hand pump simply because not a lot of whatever is being used. MSHA regulated. (Never call used oil "contaminated".)
Maybe farmers use gravity?
As an aside, I happened to recently see a setup 2/3 mile underground with two free-standing used oil tanks. One was marked "abandoned in place" because someone realized if both tanks fail when full, the retaining wall would not contain all of the used oil.
Free-standing tanks for fresh product which are in rooms (drifts/bays) underground (mines) seem to be pneumatic with small tanks using a rotational hand pump simply because not a lot of whatever is being used. MSHA regulated. (Never call used oil "contaminated".)
Maybe farmers use gravity?
As an aside, I happened to recently see a setup 2/3 mile underground with two free-standing used oil tanks. One was marked "abandoned in place" because someone realized if both tanks fail when full, the retaining wall would not contain all of the used oil.