A friend of mine bought two rear tires for a Kobota he uses in his landscaping job. He thought l would like to change them as I had nothing else to do (joke) What a pain in the backside. Just removing the water from the tubes. The first tire the water wasen't completely out, that wasen't working, couldn't break the tire loose. Finally figured almost of the water had to be out. After removing the water it went fairly good, except for the light rain, and the water from the tires it was a real mud mess.The last time I had a tire with water in it, water was remove by a large slice in the sidewall by a iron fence post sticking sideways out of a pile of dirt. None of my tractors have water filled tires, and probably never will, as I do mostly mowing. Stan