For the time being, oil is carried with in jerrycans of about 10 liters (supply tank).
From there I pump it into a white cylindrical pressure tank with an eyeglass and manometer.
This tank is on the first picture, the pump on the second.

The big scare wooden bloc may be my personal invention because I never saw it before.
it is a circulair pipe with four valves and a connection between each valve.
one from the supplytank
one to the pump,
one from the pump, one to the burner and the white pressure tank.
 

When two of the valves are open and the other closed, the oil will be pumped from supplytank to the burner and pressurevessel (upto about 0,7 to 1,5 bar)
When the other two valves are opened instead and the first two are closed, the oil is pumped in the opposite direction. The advantage of this is that in about 10 second I can empty the whole system and pump the oil back right into the supply tank.