本帖最后由 WeSay 于 2009-8-19 22:47 编辑 . V. i( |, R- K # I: U: ]' D1 y7 }* V2 K" ~4 \* K* lA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.! W" ?2 _8 F/ F r9 e& N3 l) [
# q$ f; T" ^# t% C7 e# \# A- ?# v C 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。( c' Y! N. k' W7 [" r: l7 k
! r! \: T. f; E! k9 r1 h4 o+ P4 n! fIn 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.