What would cause a bathroom sink and tub to back up when using a dishwasher or washing machine?
***We just had the septic tank emptied, thinking that this was the reason, since everything was backing up.
Now I did a load of laundry and in the Kitchen Sink made a loud gurgle noise and then a few minutes. Later the tub and sink in bathroom backed up then drained a little while later(leaving a mess).
But the kitchen sink never backed up.
Any help would be great... Thank you:)
