How to fix a leaky toilet - American Standard Home

seal toilet tank Google Search

replace the inlet control valve rubber or replace the flush rubber at the bottom of the cistern

here is a step by step guide with pictures.
How to Fix Leaky Toilet Tank

some kohler toilets have 3 tank bolts instead of 2 and they also use a special triangle gasket http://ecx.images-amazon.com/images/I/41X20hr5FeL._AA160_.jpg

Sounds like you have a leaky "flapper valve". The replacements are cheap and readily available at any home improvement store. Get the make of toilet, and take it with you. The valves are easy to replace and are pretty standard.

try phone 1-800- kohler warrany toilet

I am not familiar with this particular toilet, but most toilets that have a tank have this problem when the rubber flap stopper does not seal and allows water to trickle through.

this is the rubber stopper that lifts when you use the flush handle, the fix was to use the handle and allow all the water to flow out and use a soft rag and clean the area that the stopper seals to, and you will also want to clean the stopper of any gunk that may have accumulated on it.

The tank will unbolt and can be removed to replace this seal.


Better yet for about $130 you can have a 1.6 LF new in box and start saving water.

Hope this tip helps.
R/
David

need to replace the flapper