本帖最后由 WeSay 于 2009-8-19 22:47 编辑 1 t% j1 y1 c7 \! n( d. j ! @1 c; w4 C3 [6 I% e$ GA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.$ [/ X, Q) g' ~' j) j9 y. g
你看看下面这段话。我看得一个房子也没有,不过我觉得应该不是大问题。95年的房子,如果地下室没有进过水,说明房子没问题。再者说了,好像是需要专家决定要不要修建。# G0 O$ G( {; ?
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In newer areas the sump pump discharges onto the ground, with the exception of areas that have a very high ground water table, or those adjacent to a lake, ravine or river. In those areas, sump pumps must connect to a storm service pipe to minimize soil erosion. A geotechnical engineer determines if this is necessary before the area is developed.