# @4 l( p% _( z: c2 {. LA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.* E0 k! d! w _! [% Q2 E
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。% R* M7 ~% I' Q& u. y6 k( p
/ D0 f0 p/ F1 r* ^* i0 b4 T; L1 IIn 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.