本帖最后由 WeSay 于 2009-8-19 22:47 编辑 # \1 ]. F: h% \1 p8 U$ R* r. Y: K" ?0 x) h2 r. S
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.; a5 N& B0 U$ x& @5 N" j
0 s% P) Z3 r0 { 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。 2 S0 M* R4 ^+ y. e * i' v0 Z& [+ W# O& w3 UIn 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.