本帖最后由 WeSay 于 2009-8-19 22:47 编辑 ) |4 M& A* k; V) j4 S* ?4 M2 w1 Z. W; k( f- d {. P& S
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.- F! y8 E0 }$ P% W& D
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。 " c$ u. Q+ O9 ]! e7 d1 G! Z2 e. a1 t3 v+ @6 f/ c! r, X: ?
In 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.