0 ^8 T6 k# `+ p. R2 gA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. 0 k e5 \! B" ^1 s$ R* { 7 c4 ^9 d+ d+ m8 _2 Z# thttp://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。 + E3 @3 P9 `) ^/ a; T# x , {: S% B9 Z" h# r# x w# aIn 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.