7 y( Z* ^. ^% |2 g5 \/ K6 ^& g# kA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.6 |/ g& J' b! j% H( b
, x% }- `+ B4 {- V& K0 { 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。 * \6 O/ A) o+ w, T3 _/ }7 F1 N9 p7 A$ t# p. U1 d
In 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.