You cannot simply mop this. Because the keyword includes "pooping," you must assume the overflow water contains fecal matter.
If you want, I can produce a printed checklist, step-by-step repair guide for a DIY auger/plunger, or a short message to send to a plumber summarizing the issue. Which would you like? jade evo e54 03 over flooding toilet pooping updated
Flush once for waste and a second time for toilet paper. This reduces the "bulk" the siphon has to move at once. You cannot simply mop this
Place the plunger over the hole, maintain a seal, and plunge rapidly. I can produce a printed checklist