本帖最后由 WeSay 于 2009-8-19 22:47 编辑 # |' \3 ~% J, v8 Q& g" O 4 V# X: [$ I4 l$ h- `8 }7 rA sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.% O- c7 b1 V1 I, Y4 |8 }; \6 N u
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。 4 i- E V+ b; `% E7 E 1 d# I. ^# } J1 {* n! \" S4 qIn 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.