+ B5 c5 f9 c5 \/ U! pA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. 9 h6 l- H# L. t& T* [/ v # a! F$ g8 w& x! Y! L* H3 qhttp://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 f4 E7 p3 S5 j M 5 H$ v) h7 ]- h1 N- }6 D6 h/ lIn 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.