本帖最后由 WeSay 于 2009-8-19 22:47 编辑 / w4 B! K5 ]% _; r5 x$ w; a$ U4 ^: S1 p0 o4 w2 y z' \
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. 6 V9 l2 h% A" i; y! p2 c7 ?8 k7 f, ~% u9 e( s, b 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。 ; l! ?& G3 s: [, ^) ^( @- ?( t4 c# E/ g! U# J- D3 w
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.