本帖最后由 WeSay 于 2009-8-19 22:47 编辑 0 P' b% L Q( a8 K y2 b g7 d : {- M9 W3 o- y" Z9 JA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.# m" h" L* F( g/ V8 L
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。& a5 d" `/ d; _: }. U. ]
2 V; d' R0 Q( @+ Q2 R; z) _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.