I tried snaking the basement toilet and it just started over flowing when I flushed . I turned off the water to that toilet . It only gurgled once and doesn't gurgle anymore , random pieces of toilet paper keep coming back up and we don't use that toilet . Also, the water line doesn't fill exactly to the water line it stop an inch below the correct water line .

The drains and the other toilets go down fine without any problems so could it still be the sewer line ? And if so how much could that cost ?

Help! Thank you!