本帖最后由 WeSay 于 2009-8-19 22:47 编辑 . i# r2 N9 X8 o4 R7 o
0 q+ ? a; r. p1 N& _
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. 5 K2 Y: j ]' q9 h5 v {/ K( f1 \& l( j' b1 i0 M7 \( z' W 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。 9 _7 B0 I! s$ O9 J* q4 f: g# m" g/ e' F2 H' w& V( P
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.