That's never a good thing.......my neighbor used to drive milk tankers to the dairy. The tanks were glass lined, like a thermos. If you didn't open the vent before you opened the dump valve it would break the glass liner and ruin the milk, and trailer.
That's never a good thing.......my neighbor used to drive milk tankers to the dairy. The tanks were glass lined, like a thermos. If you didn't open the vent before you opened the dump valve it would break the glass liner and ruin the milk, and trailer.
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