Downstairs toilet bubbles and water levels goes down after flushing
Yesterday when running my washing machine my downstairs toilet started to gurgle and lose water in the bowl. Now today just flushing it makes the gurgling and water level go down. The toilet flushes fine and the water leavel is normal for a couple of minutes but then you hear the gurgles and can see the water level going down. We had our septic tank cleaned out last year because of a similar problem with the toilet. The toilet would overflow when any water source was used. So what do you think a new problem or is my septic full again. Thanks