本帖最后由 WeSay 于 2009-8-19 22:47 编辑 3 B% D( u& A! T/ _/ F # Q+ O. F# } [. RA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.9 W, d1 M# a' x& J4 z- Y
8 w# s5 [! E! v: F z http://www.edmonton.ca/for_resid ... ps-residential.aspx
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。 7 n0 J x* n) P/ ]" ~0 f9 x7 N) _7 {3 J" n! V+ 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.