WHICH ONE DOES IT BEST THE ELJER AQUA SAVER PRESSURE ASSIST OF THE REGULAR ONES. DID YOU EVER HERE OF TOTO. DRAKE. CST744S. OR ULTRAMAX. ARE THE PRESSURE ONES VERY NOISE. THE SUPPLY HOUSE GUY SAID THE TOTO HAD A 3 IN FLAPPER VALVE. PLEASE HELP I ALSO NEED A ROUND BOWL.