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Do you mean "trench?"

If so it depends on the contents of the pipe, the material the pipe is made from, the environmental factors such as the likelyhood of earthquakes, ground temperature and ambient temperature and then socio-economic issues such as how often access is required to the pipe, whether or not a spill could cause environmental damage, whether or not an overground pipe would damage the look of the area, whether it is cost effective to put the pipe in a trench etc.

Generally speaking it is in everyones interest to keep a process pipe overground

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15y ago

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