本帖最后由 WeSay 于 2009-8-19 22:47 编辑 # _& x0 O4 V M7 S$ W: A! X
, v) D3 \+ o- S2 s: aA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.4 H, b- b j7 [3 i7 z/ b; j" K8 r; f: b
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。 & x% X# L7 Z! ^8 p a; Q . t% ]3 d7 B' V( G" TIn 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.