Whenever someone takes a shower or flushes the toilet upstairs the toilet downstairs bubbles and the water goes down and the water backs up into the bathtub. Tried drano and it didn’t work as good as I want it to work.
* You have a clogged sewer pipe down stream from your tub.
* If you have a Septic System, The tank or drain field may be clogged. Take the cover off of the cleanout plug. There should be no standing water. If there is, then the problem is outside the house.
* Good Luck… Adios… Jasper…