本帖最后由 WeSay 于 2009-8-19 22:47 编辑 , k; y3 ~8 }: e+ T" C5 V# o# P9 f( J1 z5 \6 [
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.4 H- J6 i/ g c3 ^0 X3 v
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。* B: Q6 l+ t5 |) M* O b" a
' v$ A9 W. T# dIn 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.