本帖最后由 WeSay 于 2009-8-19 22:47 编辑 5 P. h6 S3 l4 N8 @# }' i6 `/ R9 `" C# H- r
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.& N- K; J7 e$ K* ^0 ^
$ z% g$ w" i7 V 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。8 @# X# m( Q' u
# X5 n6 v% H; R" e5 t! d6 _& b3 vIn 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.