本帖最后由 WeSay 于 2009-8-19 22:47 编辑 m. g9 @! e. |' i
8 T, N+ b; q- B8 c
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. , v, x- ~# e6 q ?4 H3 K M5 y" ?; F) W. X1 c 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。 ( `. v0 u/ K7 x/ n' _3 h+ K( X5 `3 C5 ^- w% x; {$ h% @ z, @
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.