h* q5 @6 n+ |; @7 W2 LA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988. - M3 t. t4 Y, F 7 v, M4 u0 R5 [; q9 f4 T4 Z$ Xhttp://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。& ^1 _, D9 J3 ~& d; Q
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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.