本帖最后由 WeSay 于 2009-8-19 22:47 编辑 $ \6 s! N# G3 [" `1 ]4 [4 o& o( [3 v4 N6 Z
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.; x/ C6 ]7 I" r, r$ k
% d0 U6 O( H6 ~4 p8 x 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 B; g4 L) C3 f3 j8 |( L
% `* Z5 H9 n( p! s$ `9 n, m: p% RIn 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.