does your toilet still run after replacing the flapper?
The flush valve seat has most likely become corroded or chipped causing the flapper to not seal correctly. Replace your flush valve.
REPLACE A WORN FLUSH VALVE
- Turn off water supply. Flush toilet and remove excess water from tank with sponge. Remove water supply line from bottom of toilet fill valve.
- Unbolt tank from bowl, then lift off tank. Remove washers and nuts from bottom of tank, then remove old bolts. Remove old gasket.
- Remove old flush valve, including flapper/tank ball unit.
- When installed, the top of the overflow pipe on the new flush valve should be at least 1" below the hole in the tank where the tank flush lever is mounted. If necessary, cut the overflow pipe with saw to achieve this height. The critical level mark on the fill valve (identified by a C.L. mark on the Fluidmaster Fill Valve should be at least 1" above the top of the overflow pipe.
- Install new flush valve. Tighten lock nut 1/2 turn beyond hand-tight. DO NOT OVERTIGHTEN or tank may crack.
- Slide new rubber gasket (sold separately) onto threaded end of flush valve.
- Place tank back on bowl so that tank-to-bowl gasket fits evenly. Level tank and bowl.
- Reconnect tank to bowl with bolts, washers and nuts. Tighten bolts evenly; DO NOT OVERTIGHTEN or bowl may crack.
- Connect flapper chain. Allow slight slack when flapper is in closed position.
- Attach existing refill tube to overflow pipe.
- If you have a Fluidmaster Fill Valve, remove overflow pipe ring. Then use cap to attach directly to refill tube.
- Reconnect water supply line to bottom of toilet fill valve.
- Turn on water supply, check for leaks, then check flush.
© 2011 Fluidmaster, Inc. All rights reserved. This document is not a substitute for the product instructions, which may be found at www.fluidmaster.com. Fluidmaster, Inc. shall not be liable for any damages resulting from failure to install or maintain the product in accordance with the product instructions, from abuse or misuse of the product, from use of non-Fluidmaster, Inc. parts, or from overtightening. Do not use in-tank drop-in toilet bowl cleaners containing bleach or chlorine.