本帖最后由 WeSay 于 2009-8-19 22:47 编辑 7 n" O" B- n" [& F1 W( u
t, ^1 D7 |6 x4 B; U7 S. WA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. & Q) V r- e3 p* E4 D& h : v. Y/ X; ~5 k: {4 c9 U( Hhttp://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。 + Z0 s9 T% J$ }* H6 M% L : q( O* _/ s I( T3 O) 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.