, ]8 B* e4 I9 VA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. / z; ^4 y% n0 |8 ?5 O4 G* i# ] 8 ?; Q9 o' `* \9 R0 I$ Ghttp://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。 M$ O2 u; G' a
9 b3 |2 ^1 h" I' i) B3 @1 U1 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.