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Interstitial monitoring of double wall tanks

Interstitial monitoring of double wall tanks

Interstitial monitoring of double wall tanks

(OP)
Is pressurizing the interstitial space of a double tank fitted with a pressure gauge, an effective way to monitor the integrity of the primary containment instead of having all the bells and whistles that adorn much larger tank than a 1000 gallon tank.

RE: Interstitial monitoring of double wall tanks

Have you considered the effect of the external pressure on the inner tank? Large tanks do not respond well to vacuum conditions without additional stiffening.

RE: Interstitial monitoring of double wall tanks

(OP)
This is a Granby tank with shell and head thicknesses of 10 gauge This tank was tested to 5 psig and I imagine that this pressure test was only for the primary containment. I sent the manufacturer a note about my inquiry. I am basically looking for a test pressure of 1 to 2 psig. This is a small tank of 1000 gallons containing reclaimed gasoline so I am not looking at expansive electronic monitoring devices with all the bells and whistles; on the other I want the account to be aware if the primary containment has been compromised.

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