本帖最后由 WeSay 于 2009-8-19 22:47 编辑 # i! F% R, _$ G$ f+ R% I! z l" l 3 c* t/ K" e7 Q0 cA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.7 [. P8 R" j/ _. m
" x* V! K& M- e# F' I$ Q! R' v! I) { 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。 4 r6 G/ M. V7 H+ x1 }$ D+ K$ O7 \5 S2 d- I# n' b
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.