本帖最后由 WeSay 于 2009-8-19 22:47 编辑 # S& z9 [4 O) O9 G, D( @. S ) t2 o# o t4 w$ ZA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. 7 O% D% W$ ^7 \) J ' L% g Q4 }! q( Rhttp://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。 : P8 n( ~) O$ t6 t( [0 _. y9 T" x* ~7 T( F8 E: V9 ?
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.