| 21. | The British plumbing system is actually very cleverly thought out.
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| 22. | The discharge water must be purged outside the house, not through the plumbing system.
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| 23. | The University's plumbing system contains pipes for maintaining slood differential.
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| 24. | Officials blamed the failure of the project on incompatibility with the building's existing plumbing systems.
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| 25. | The straight sections of plumbing systems are called " pipes " or " tubes ".
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| 26. | Granite Systems will focus on computer networking _ the plumbing system that links computers together.
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| 27. | The Stooges manage to destroy the entire plumbing system in the home in grand fashion.
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| 28. | Water tanks on the roof provided the necessary water pressure for the building's plumbing system.
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| 29. | All the squatters were evicted, rubbish cleaned up, and a centralized plumbing system was begun.
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| 30. | In 2006, the electrical and plumbing systems were upgraded.
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