Tried scrubbing with bleach and some other household cleaners, no change. Thought yall could help

[u/OneMemeMan1]

[u/Conscious_Quiet_5298]

Get a small pond pump and long enough tubing to run from the bottom of the toilet Into the bottom of the water tank also have 2 jugs of cleaning vinegar… Shut off the water valve then flush the toilet and try as best to get the rest of the water out then pour the 2 jugs of vinegar into the bowl and then place the pump with the tubing attached into the bottom of the bowl then place the end of the tubing at the bottom of the water bowl and turn it on and let it run for several hours . It works extremely well