Hi,
We had an issue this past weekend where the toilets started bubbling while showering. Then next thing we knew hubby ran the washer and toilets overflowed, drain in laundry room sludgey stuff came up, bathtubs dirty water came up. We had a plumber out who found a block and cleared it out with a snake. This morning during shower toilet bubbling again, water level went down, but no overflows… Do we need to get the plumber back out?