本帖最后由 WeSay 于 2009-8-19 22:47 编辑 7 Y. p% Y& D- k1 ~% q- f3 F 8 `$ u% I+ ~+ [7 ^, TA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.0 q4 \: i5 e s7 f0 G) X+ R, C
2 u5 u* j: P8 q; 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。 6 K, F- u1 h! _- \8 ~* c$ P. ]1 }' Q+ r0 H+ ` a+ b
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.