本帖最后由 WeSay 于 2009-8-19 22:47 编辑 * d4 I; J4 ?- o/ q- I* L2 o 7 ^4 ~! s% Z5 F5 D- f- YA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. & D8 x% `7 H" M0 {0 U$ E% V4 C! n$ G" r T8 L, ^ 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。 , s) Y+ `: I z' H0 \' i0 w 5 k! h$ h8 S! a0 ^2 nIn 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.