本帖最后由 WeSay 于 2009-8-19 22:47 编辑 ( ~( i5 y2 Z/ D 3 {$ ~- W* Z5 b/ J- L% _% JA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.6 O) K3 c; @2 t, V' Z, p6 j
. r9 \% ^! `6 t' ~# P 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。 ' l' T* k- t6 {- b : z/ ^! L6 K H; xIn 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.