method.
If roto rooter found tree roots heres another cheap miracle cure, 4 or
5 times a year dump 25 pounds of rock salt or softener in your basement wash tub, add hot water and stir with a board or something. get lots of salt water in the main sewer line, then leave the house for the day so no water is used. ********************************************************************** ******They did find a few roots, so I will be trying this idea of yours too. :-)
Cheri