It’s the ball that opens to release the water and closes to hold the water . My toilet stopped holding the water. The ball would stay open. Called KOHLER and they said it went out cuz I did not buy fancy remote. Makes no sense. Fancy remote let’s you control the ball so you can clean. Remove anything that might be stuck and keep from messing up. Order the part and fancy remote. I’m too deep in . I’ll try and see if this is true.
What is the long term reliability? How does it flush? Does it clog? Does it have an enema fuction? Is the seat easily removable to clean? Can you use a phone app as the remote? What version of bluetooth does it use. Love to see a long term review. Is this the 2.0 version. The saving in tp and water might justify the cost. How does it compare to Toto or Duravit?