本帖最后由 WeSay 于 2009-8-19 22:47 编辑 " J' `9 X* ^8 P6 X/ {& {1 V/ S
8 K* x9 y5 P! A
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. : f' ?* } s$ ]" |. p ' b; _' Q% c$ p# h) ahttp://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。 9 e; s! l4 k% z* R+ _ s4 s# ] - ^9 ?% u" V' w+ T! U8 L0 |' z9 H! _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.