6 L+ _- J* p2 K" e+ e* V- z- F( IA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. / ~- }2 l# Q5 m9 E, L( l+ S$ v5 B, g# ]: ^2 g' x; d0 N w+ q6 _* w 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。3 E% m; W( s" |; g( ~
7 E6 a- p# i# o1 X/ @# [- zIn 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.