本帖最后由 WeSay 于 2009-8-19 22:47 编辑 ) q N% h4 p( M$ _: d( S( F+ f6 C# P' V/ w- s" L
A sump pump is part of a building's foundation drainage system and it has been a requirement since 1988.* l5 O- B E2 J1 m* q! Q w
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。/ {8 g- R2 T" f1 ~% j; W
0 D' X" S7 g; S! b. V" 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.