; a- y p2 i! `: tA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. & j0 U# i% X3 i0 }! g) m) N " `, d* X0 o) v& Vhttp://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 v5 j# v6 W; {; E2 S7 N
0 t4 R/ r- j; j0 H& IIn 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.