Sep 7, 2007 - Float cup-type fill valves also feature a water-level adjustment clip on . then the fill valve seal is probably defective and requires replacement. Feb 15, 2014 - The toilet fill valve replacement cost should be under 0 dollars including all the parts . It is possible for the water fill valve 'float' to get stuck. The float cup valve in a toilet is part of the ballcock assembly. . Turn off the water supply shutoff valve on the toilet's supply line to fix a sticking float cup valve. . Turn off the water supply and remove the water in the toilet's tank to replace the ballcock assembly to fix a . Robert Manufacturing KB136 Bob 2 Piece Standard Disc and Cup Kit for Robert Manufacturing R400-5 Series Bob Red Brass Float Valve Assembly with . Underneath the tank, unscrew the locknut holding flush valve to the tank using a . the same way you removed the old one, following manufacturer's instructions. Oct 23, 2017 - . types of toilet fill valves, including plunger, diaphragm, floating cup, and . The lever assembly moves a plastic button in the top of the bonnet, . Feb 23, 2018 - A float cup fill valve will have a small circular cylinder wrapped around . you'll see a lock nut attaching the fill valve assembly to the toilet on the . Then the fill valve refills the tank with water and the float rises along with the water Thanks as always for reading, watching, and being part of our awesome 00 replacement going remove the need for the solo cup under the valve?