本帖最后由 WeSay 于 2009-8-19 22:47 编辑 / b+ v' I8 \! }6 x; W2 }. K+ d* M- a- ^( a( @
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. & g* a5 ~% V! R5 n/ c% h+ q8 `. h/ e9 v0 Z7 D' X- Y& w: L 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。 6 e4 ^/ i; E7 k3 _ b8 m h: ?. J0 r" M; w: \, k7 X0 n. qIn 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.