I was recently awakened by the loud, piercing sound of jackhammering from toilet on main floor, toilet was vibrating and knob from shut off valve was blown off. We immediatley shut the main water valve and the noise stopped. It is 6 am on a sunday morning, help!
We've put 1/2 cup baking soda and 1/2 cup white vinegar, followed by boiling water down blocked drain - still no luck - trying salt and baking soda combo now. Water has backed up in dishwasher, waste extractor (kitchen gobbler) etc - we need to be watching the Wimbelton finals instead of this - help!!