I guess it must have been foam not suds. The drain from the tiles around the outside of the basement walls to the ditch, (this is an old farm), was olugged up at the ditch, but was able to snake it about 75 feet from ditch towards house. I guess its clogged in the remaining pipe from house to the area where the snake quit. It could be roots I think. It has not been raining an unusual amount but it still is coming in.