本帖最后由 WeSay 于 2009-8-19 22:47 编辑 % s3 d# C8 n( ^ 4 K9 K* K7 l7 }1 c0 N# m! ZA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.# \% r' d" P/ g" c1 b! \1 ]
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。 - k' b& D3 e* y$ E4 ?2 @$ a0 _ # [' O. E3 M3 ^+ S3 k% f5 A1 RIn 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.