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OIL STORAGE TANKS - home
ABANDONING OIL TANKS
ABOVE GROUND OIL TANK (AST) GUIDE
BURIED OIL TANK (UST) GUIDE
HEATING OIL TYPES & PROPERTIES - home
HOME BUYERS GUIDE TO OIL TANKS
OIL SPILL CLEANUP / PREVENTION
OIL TANK ABANDONING PROCEDURE
OIL TANK INSPECTION & TROUBLESHOOTING
OIL TANK LEAKS & SMELLS
OIL TANK PIPING & PIPING DEFECTS
OIL TANK REGULATIONS
OIL TANK REMOVAL COs
OIL TANK SPILL CLEANUP / PREVENTION
OIL TANK LEAK TEST METHODS
OIL TANK TESTING & REMOVAL COs
OIL TANK WATER CONTAMINATION
Oil tank fill & vent piping guide:
This heating oil piping article gives advice and example photos for the installation, inspection, & leak troubleshooting of oil tank fill & vent piping for both buried and above ground oil storage tanks.
The page top photo shows a conscientious oil delivery drive from Bottini Oil in Dutchess County NY listening at the oil tank vent to determine when the oil storage tank has been filled. Drivers who don't bother to listen during oil tank fill-up and where there is no loud tank alarm installed are at risk of over-filling the oil tank and causing a spill.
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Here are a some important indicators of tank condition that any home owner or home inspector can examine when an oil storage tank is visible and accessible inside or at a building. Sketch at above right provided courtesy of Torongo home inspection and education firm Carson Dunlop Associates.
The oil company recommends going to 2", and most new installations use a two-inch diameter vent pipe; we've seen vent piping as small as one inch on oil tanks. During fill fuel is delivered at an average rate of 60 or even 70 gallons per minute.
Improper or blocked oil tank air exit venting can place excessive stress on tank seams and piping.
Fill and Vent Piping for Duplex Heating Oil Storage Tanks
At buildings where two heating oil storage tanks are installed, typically indoors, this Audel Oil Burner Guide sketch shows the proper arrangement of fill piping, vent piping, and oil line piping leaving the tanks.
We have seen an alternative arrangement that provides a fill line only to the first tank, with the second tank filled by a second pipe exiting the top of the first oil tank - not an arrangement we recommend as this forces the first oil tank to be fully pressurized at the oil delivery truck pressure during fill-up of the second tank.
The piping shown in this Audel sketch is better. Details about piping of fill and vent and oil supply lines for duplex oil tanks are
Thanks to Arlene Puentes for technical editing, March 2010.
Continue reading at OIL FILL PIPE LEAKS or select a topic from the More Reading links shown below.
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