New gas hauler

Discussion in 'Hazmat Trucking Forum' started by Baby T, Aug 11, 2021.

  1. Baby T

    Baby T Bobtail Member

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    Mar 8, 2021
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    I have a question! Can any tanker driver that has hauled gas give me there honest feedback on the best way to tell if your compartment are completely empty after delivery instead of tapping on the side of the trailer. This method seems a little crazy to say the least. I’m asking this question cause I just started hauling gas and there seems to be NO GOOD way to check to assure you have completely emptied your product tanks and everyone at the company I work for seems to use the tapping techniques; I’m sure that there has to be a better way. Any response would be appreciated thank you.
     
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  3. HiramKingWilliams

    HiramKingWilliams Medium Load Member

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    I’m fairly new to it, 6 months, but I use a combo of sight glass, tapping the tank, and before/after veeder root. If all else fails, you can climb up top, pop the lid open and take a look inside.
     
    91B20H8 Thanks this.
  4. darknessesedge

    darknessesedge Medium Load Member

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  5. Baby T

    Baby T Bobtail Member

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    Thank you sir for your feedback! Much welcomed and appreciated. Consider it note taken
     
  6. Baby T

    Baby T Bobtail Member

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    Mar 8, 2021
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    Thank you for your response! I appreciate your feedback. Be safe out there
     
  7. Cat sdp

    Cat sdp . .

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    Orion's Belt
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    Drain compartment into a bucket…..

    open the valve very carefully :)
     
    snowman1980 Thanks this.
  8. Lazer

    Lazer Medium Load Member

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    Jan 22, 2017
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    Hopefully you have sight glasses. You can also tell by lifting the drain hose, and listening. If you concerned about every last drop out, don’t worry about it.
     
    DDoubleDD Thanks this.
  9. FFL Trucker

    FFL Trucker Light Load Member

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    Jul 13, 2011
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    The tapping has never worked for me on anything other than dry bulk like frac sand.

    Best method is final reconciliation using veeder root or stick, this step is critical since it shows that you didn't cross dump or have a lot of left over product. Kinda tricky if you have a lot of active fuelers like at Costco.

    You gotta play around with your tractors air bags if you're on an angle, even if you do the bucket it could still have a lot of product that won't get out because of the angle. The bucket test only works on flat ground.
     
  10. TNSquire

    TNSquire Light Load Member

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    Oct 13, 2016
    Decatur, TN
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    Many solid answers given....
    Trailer angle can contribute to compartment retention, occasionally its terrible.
    Being aware of that angle, checking sight glass, listening for the whoosh sound as the compartment drains, and finishing with a bucket draw down are all good answers.
    I endeavor to keep the rear of my trailer lower than the front when delivering.
    Then I really don't need to fuss with anything else.
    I get a good drain, little retention, and the customer gets all their product delivered into their tanks.
    I'll even pull onto a curb to raise that front end to get a good drain.
     
    St1714 and HiramKingWilliams Thank this.
  11. RockinChair

    RockinChair Road Train Member

    Back in my day we just listened for the whoosh and watched the sight glasses on the API head and the drop fittings. I think the newer Scullys have retain sensors in addition to overfill. Tapping on a liquid tank is just about worthless IMO, but feeling for the temperature change line (like you do on a propane tank) might work if the product is considerably cooler than ambient air.
     
    HiramKingWilliams Thanks this.
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