本帖最后由 WeSay 于 2009-8-19 22:47 编辑 & N7 G; r0 \$ M8 d/ k- O' M" ?5 e6 q: ~1 ^6 H/ T* c
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.! S8 W9 b' Y w& h
$ P5 }- s+ @# J5 D* \ 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。2 Y O" N }! t+ h- }& T
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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.