What is the general consensus on the liquid to add to the clean water tank?

After a brief 15-minute search on this sub, I ended up with multiple solutions:

  • Mouthwash
  • Vinegar, but apparently it may damage the plastic.
  • Denture cleaning tablets
  • Official Roborock cleaning solution
  • Dish soap
  • Bleach, but apparently it may damage the plastic.
  • Clorox or Lysol
  • Good old fashioned trick to pour it out every day (or two days)

Anyone out there who has been using a solution for 1-2 years that worked and never caused any damage to the robot?