I recently had an external sump pump installed by the water and sewer division of my municipality. A program is in place to correct the illegal connection of the sewer line to the storm water drain tiles around the perimeter of houses that were built about 30 years ago. I no longer get the water seeping in from the joint where the walls and floor meet in my basement but now find that the floor drains are constantly wet. The sump pump did not correct the problems of seepage through cracks in the basement floor either. I wasn't necessarily expecting it to but was hopeful. My question is this: Is it possible that water that used to spill from the sewer line into the exterior drain tiles is now just sitting in the sewer line under my house and keeping the pipes constantly full? Is it possible that the sewer lines under the house slope toward the house and now that the water has nowhere to go it just sits in the pipe? I am the only house in the neighborhood that has had the sump pump installed (although others will need it done as well) and now I am worried that when we get a really bad rain, the water may back up into my basement sooner than before because it won't dump into the drain tiles anymore. Is there a remedy for this?