本帖最后由 WeSay 于 2009-8-19 22:47 编辑 6 }+ ` X2 t5 x& P. Q7 J
$ A* i! V, x/ T+ @: J+ [
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.# a+ {; z4 U* E# Q2 B
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。 , R" I% Q+ U( ^0 K2 y0 q3 z$ b6 S/ g U2 L! ]7 ~
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.