My drains (kitchen, bathroom, basement laundry) are slow, verging on stuck. The toilets don't seem to backup, but I'll assume that this is because the path is long compared to the volume that I drop and the long time between flushes. Doe s this seem reasonable? Can one cause (food or hair or god knows what) affect all of my drains, or would this suggest that there is some larger problem like a root (or what)? Tomorrow the rooter guy is coming by. Will this be sufficient, or should I pay someone to jack the house up 15 feet in order to develop more hydrostatic pressure???