I cannot find any mention of the Tapo recommended cleaning agent for the RV30 and other vacuums in mop mode.

The Tapo FAQ's say:-

"Can I add my preferred cleaning agents to the water tank? Not recommended. You can use water or Tapo cleaning agents instead of an unofficial floor cleaner as that may corrode the water tank or affect the lifetime of your vacuum."

Yet nowhere online is there any mention of Tapo cleaning agents to buy. This is very unhelpful. Water on its own is not enough to clean or disinfect floor surfaces.

Please advise which cleaners are suitable if you don't produce your own.