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Old 02-05-2013, 11:33 AM   #25
SIKSUKR
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I would suspect that area under the driveway had been altered by the new pavement and the sitework that probably went with it. If that area got more compacted and pushed the pipe lower that would create exactly what you describe. The only rub is did the contractors that installed it not properly compact and set it to the proper pitch or did the driveway construction mess that grade up.
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