本帖最后由 WeSay 于 2009-8-19 22:47 编辑 # x9 S+ E; H4 C" C5 i 9 W8 X$ d2 x- @4 d# n K6 R JA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.0 _* {! t7 O7 a# B1 ^3 O* E
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。% P) [3 ]: L* J4 r. q
" F# y; U- `( V- z9 CIn 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.