本帖最后由 WeSay 于 2009-8-19 22:47 编辑 7 z0 a; i% s. H! e, q) @5 N8 ]) s8 ?1 ~7 B7 Z1 D
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.! g' w& r0 U7 t3 e/ X; F
- ?( ]* w+ L' x* o7 i 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。5 T. o' E$ J9 U
% c1 h. d7 i5 n/ pIn 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.