本帖最后由 WeSay 于 2009-8-19 22:47 编辑 2 ]9 }8 w: Q: }2 P# @ $ p7 ]. z+ S( K* f- xA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.6 M E* {, H' z* }% ] g( U
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。 7 ]; P& e; d- K& t; C. i4 k' }4 r2 p/ K% O3 t5 g
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.