本帖最后由 WeSay 于 2009-8-19 22:47 编辑 ! o' R+ z6 q' J* i ! _) I, j _' V; K+ SA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.4 c( M3 q: g$ H! w! g6 F
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, y3 ^8 Z0 o; N $ [; B$ a: M9 e- O: U1 R- Q/ G6 EIn 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.