Looking Under the Surface -- Can You Dig It!

By
Home Inspector with King of the House Home Inspection, Inc

In the past I have written a number of articles about underground fuel tanks, both heating oil and gasoline tanks. Such tanks were common in older homes and, sometimes, I find homes where the tanks are still in use supplying a furnace.

The most common signs of a storage tank underground consist of seeing either the vent, or breather, pipe.

Or a fill pipe or cap.

The first photo is a vent at an underground oil tank. The next one is the fill tube and cap for an old underground gasoline tank. Another thing the inspector might see is a small diameter copper pipe entering a basement or a crawl space wall.

Since I have written about this topic before, my intent here is to show a schematic view of what these systems look like if one can only get under the soil. I have had clients who are confused by the configuration. They cannot visualize how the system is setup. I think the photo below makes it all pretty clear. That is the fill pipe at the right and the vent at the left. You can also see a fuel line entering the home.

 

Thanks for stopping by,

Steven L. Smith

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Show All Comments
Anonymous
Anonymous
Anonymous

Not being able to see what is under the ground, it looks like you have to be a good detective to know what is going on.

November 09, 2009 03:22 PM #1
Rainmaker
66,049
Tammy Woodin
Bellingham, WA
Sudden Valley, Washington

Do these tanks deteriorate underground? Just wondering how  to determine the condition of the tank.

November 09, 2009 03:32 PM #2
Rainmaker
1,220,177
Jay Markanich
Jay Markanich Real Estate Inspections, LLC - Bristow, VA
Home Inspector - servicing all Northern Virginia

Yep, buried.

November 09, 2009 03:42 PM #3
Rainer
67,262
David Helm
Helm Home Inspections - Bellingham, WA
Bellingham, Wa. Licensed Home Insp

These tanks do deteriorate, leaking oil into the soil.  They can become a major nightmare for the homeowner since all contaminated soil has to be removed and disposed of in an ecological manner.

November 10, 2009 12:57 PM #4
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Rainmaker
1,178,497

Steven L. Smith

Bellingham WA Home Inspector
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