本帖最后由 WeSay 于 2009-8-19 22:47 编辑 5 g& V5 \+ H" n, f8 G+ F [, }$ O- X
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.5 A% z6 L# l& B: ~1 a
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。 4 P& D& |1 a+ ? & v5 O8 c1 m# x# R6 SIn 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.