Use and Care Guide

Flush toilet and sponge
remaining water from
tank.
Shut off water supply.
Remove old flush valve & flapper.
Flush toilet several times. Periodically check for leaks for
several days following installation. Call us with any
comments or questions.
Loosen locknut and extend upper tube to
proper height. Hand-tighten locknut. Top of
flush valve should be no more than 3/4"
above water line marked in tank. Verify top
of flush valve is at least 1" below bottom of
flush lever nut.
Note: Verify C/L line (critical level) on fill
valve or ballcock is at least 1" above top of
overflow tube. This is a plumbing code
requirement.
Remove old tank-to-
bowl sponge gasket
and discard. Using a
large wrench remove
and discard
old flush valve,
flapper &
mounting nut.
Adjust height of flush valve.
Disconnect water supply line under tank.
Install new flush valve as shown.
Don't forget to install flat
chipboard washer
against underside of
tank. (This will reduce
friction, making it easier
to tighten plastic
mounting nut by hand.)
Hand-tighten mounting
nut plus 1/4 turn max.
(Do not over-tighten or
tank may crack.)
Caution: If the top of the
overflow tube in your toilet is
higher than the flush lever
opening, water could leak out.
Attach refill tube to fill
valve or ballcock and clip
other end to overflow tube
as shown (S-shape hook
provided). Attach flapper
chain to lever. The chain
should have minimal
slack.
Attach refill tube and flapper chain.
Connect water supply as shown.
Pipe dope is not recommended.
Hand-tighten only; do not over-
tighten coupling nut.
Connect water supply line and turn on water supply.
SS/Braided connector shown
11.
7.
locknut
overflow tube
water line
overflow tube
locknut
1" min.
flush valve
flush lever nut
refill tube
flush lever
mounting nut
Vinyl/SS Braided
Connector
coupling nut
water supply valve
Flanged Metal
Tubing
mounting nut
fiber washer
existing coupling nut
water supply valve
3/8" Flexible
Copper Tubing
mounting nut
cone washer
coupling nut
water supply valve
fiber washer
coupling nut
6.
8.
Check for leaks.
Lavelle Industries, Inc.
665 McHenry Street
Burlington, WI 53105
800-LAVELLE
www.korky.com
©2005 Lavelle Industries, Inc.
Guarantee
The Korky
®
Flush Valve and Flapper are
made from engineered materials which
resist harsh chemicals and toilet tank
cleaners. After proper installation
according to these instructions; if it fails
within five years of purchase, return to
Lavelle. It will be replaced at no charge.
Future Troubleshooting Tips
Solution: Confirm that water supply valve is open all the way, and there are no
kinks in supply line. If problem persists, replace fill valve or ballcock with Korky
QuietFill Valve, Lavelle model #528.
Problem: Toilet tank fills too slowly.
Problem: Fill valve or ballcock turns on and/or continuously
runs, and water level rises above top of overflow tube,
spilling into overflow tube.
Problem: Fill valve or ballcock turns on and off by itself or runs
continuously (valve may hiss), but water level in tank remains
below top of oveflow tube.
Solution: Replace fill valve or ballcock with Korky QuietFill Valve, Lavelle
model #528.
Solution: Fill valve or ballcock is turning on or running due to a slow
leak in the tank, most likely caused by a worn-out flapper. Replace
flapper with one of Lavelle's premium Korky toilet flappers for optimum
performance.
LIT078 Rev 7/05
Use either 2 or 3 bolts as needed.
(Do not over-tighten.) Push new sponge
gasket over flush valve threads and
mounting nut.
chain
flapper
10.
Adjustable Flush Valve Kit (4030) Installation Instructions
Tools required:

sponge

bucket

adjustable
wrench or pliers

pipe wrench

ruler or
tape measure

screw driver
Save instructions
for
future reference.
rubber washer
brass washer
brass hex nut
sponge gasket
brass washer
rubber washer
brass hex nut
mounting nut
coupling nut
water supply line
FLUSH VALVE
FLAPPER
FILL VALVE
refill tube
clip
water level
flush lever
brass bolt
rubber seal
locknut
overflow tube
mounting nut
1.
2.
Remove nuts, washers & bolts. Discard
old parts. Lift off tank from bowl.
Unbolt tank from bowl.
3. 5.
SS/Braided connector shown
Assemble bolts and washers to tank as shown.
4.
9.
rubber washer
brass washer
brass hex nut
sponge gasket
brass bolt
mounting nut
sponge gasket
mounting nut
red rubber seal
brass washer
rubber washer
brass hex nut
sponge gasket
tank floor
bowl
mounting nut
chipboard washer
Ensure sponge gasket is properly
positioned on flush valve. Assemble as
shown. Alternate hand tightening of
nuts to ensure tank
stays level. (Do
not over-tighten.)
Reassemble tank to bowl.