本帖最后由 WeSay 于 2009-8-19 22:47 编辑 ' c* t+ N( E: @! w ( t7 y; }0 P. XA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. / `$ {3 ^8 q) [4 b, R# E! I2 N 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。% t% K) ~0 c# p0 g- j$ i# \
+ ]0 [4 a1 ?6 g N2 w* j' F
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.