If you flush the toilet and the water goes into the bath tub, then it suggests that your main drain line is clogged so that water has no where else to go. You could rent an auger and snake it, but it's probably do deep that you need to call a professional plumber.
If you flush the toilet and the water goes into the bath tub, then it suggests that your main drain line is clogged so that water has no where else to go. You could rent an auger and snake it, but it's probably do deep that you need to call a professional plumber.