本帖最后由 WeSay 于 2009-8-19 22:47 编辑 , T# E7 O; ~( X8 t * ~/ Z$ W8 ?* e; r* JA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. 0 q; J9 d0 n0 p( k: X( `3 x7 t) s* Z9 m: [8 }1 f9 J 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 R7 o* g4 R% R/ }/ K. ? ) h3 p1 T3 v8 j3 F6 kIn 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.