max totoHow to Clean repair Toto Toilet FILL valve. If your toto or other brand toilet runs, this mht help you fix the problem. Also see my video on replacing t...The TOTO UltraMax utilizes TOTO's G-Max flushing system. The G-Max flushing system features a 3 in. wide flush valve, extra-large siphon jet, and a large trapway. This reliable combination