本帖最后由 WeSay 于 2009-8-19 22:47 编辑 & T, U5 p* |0 q( u* [0 u1 c$ u5 Z; G# n2 ^+ C
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.9 \0 o( e% F$ `" {) p9 G
& @! V* N6 Y9 `2 @) T 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 I% ]* H" Z# h+ `5 y2 a4 O
5 N9 B4 Z/ U2 H; X+ r4 jIn 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.