1987 - Volume #11, Issue #1, Page #23
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Inner Tube Helps Thaw Water Tank
"It's a new idea farmers have developed to keep water available in water tanks all winter," says Bob Wood, Adrian, Texas. He says the idea is to partially fill tractor inner tubes with water and float them in water tanks."The black tubes absorb warmth from the sun. Because they remain half-submerged in the wate..........

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