本帖最后由 WeSay 于 2009-8-19 22:47 编辑 + a+ r) l5 s) }- ]3 | - s. J" ]. w% h5 _A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. / C5 B' }) `( I% T( P0 g- E2 z4 V# g ~ `' H 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。 P6 C2 ?# C. R% f- V
: r+ Z% N# t i" T+ V* @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.