本帖最后由 WeSay 于 2009-8-19 22:47 编辑 % N4 a7 @/ r# g- s. |8 s; W; N
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. + U T) }0 {# Q6 f% l1 e) }( e9 b; J' y 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。7 K& P8 |2 A) ]: l- x6 U' @4 T
" L. F/ h7 z& d( O* gIn 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.