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Thread: Finding USTs with EMI?

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    Default Finding USTs with EMI?

    I do private locating, and environmental companies always ask me to find USTs. I I've tried several times to locate edges of USTs by connecting to a vent pipe - with no success - seems to light up everything in parking lot, especially if there's rebar involved. First of all, is it possible to find edges (within 2-ft) of USTs using EMI; and second, How???

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    Default Re: Finding USTs with EMI?

    Quote Originally Posted by WNC Utility Locator View Post
    I do private locating, and environmental companies always ask me to find USTs. I I've tried several times to locate edges of USTs by connecting to a vent pipe - with no success - seems to light up everything in parking lot, especially if there's rebar involved. First of all, is it possible to find edges (within 2-ft) of USTs using EMI; and second, How???
    Backhoes find everything. I can only think of Ground Probing Radar. These days some tanks are made of fiberglass or other nonconducting material. Plus modern transmitters are making higher wattage outputs, one does not want a spark in a storage tank that had or has flammable liquids.

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    Default Re: Finding USTs with EMI?

    Hi WNC, I do a lot of UST locating, what I find most helpful is a split box detector and a magnetometer. I prefer the aquatronic a6 and schonstedt ga92tx. With these two tools you can find lots of tanks as long as they aren't or more feet down. The a6 is great at outlining the fact that there is something and can be used to outline it and get a rough estimate of the size, the magnetometer is good for a closer pinpointing of the edges based on the polarity change for a solid steel object. rebar will mess this up though, and it will only find steel tanks

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    Mke
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    Default Re: Finding USTs with EMI?

    Ditto.... Split box is a miracle worker in the right hands.

    mke

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    Default Re: Finding USTs with EMI?

    How do you get the most out of a split box by the way?

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    Default Re: Finding USTs with EMI?

    Quote Originally Posted by EricRon View Post
    How do you get the most out of a split box by the way?
    He has not been on here in a while ....sorry if he does not reply right away...
    wise men talk because they have something to say and fools because they have to say something....plato

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    Default Re: Finding USTs with EMI?

    Quote Originally Posted by EricRon View Post
    How do you get the most out of a split box by the way?
    You have to know when to use it and what to use it for.

    the SBD has 2 main functions when used in the on-handle mode, that is to detect large conductive objects under the receiver and to detect solid metal pipes (no sewer pipes) that pass under the transmitter (but only perpendicular to the direction of the pipe{and the signal disappears when you're parallel with the metal pipe})

    use something else for direct transmitting.

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