本帖最后由 WeSay 于 2009-8-19 22:47 编辑 & @0 S+ D. s) H+ h$ G* E 8 ]3 l: E X# x9 l# ^A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. y) d. c" l8 i0 k9 E . M1 D: X' S2 g; s- lhttp://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。) X) j. ] w- G5 T
8 c+ d8 u8 F1 N" N7 u- Q W0 rIn 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.