本帖最后由 WeSay 于 2009-8-19 22:47 编辑 1 {& h0 ^+ j! W/ b9 h, l/ K" t ! M8 j8 l* Q u; KA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. 4 A7 J) |$ \; h/ [% o4 [1 R% Z4 c& ^( }) V1 ` 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。 % Z8 J0 Q6 D C : f* Y3 C/ r t- W( fIn 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.