My Kohler K3386DA used to work fine for the last 8 yrs or so. Now, it continues to run (flapper doesn't stop the water flow) until a couple more taps on the lever. Even when the flapper works ok, it takes long to fill the tank (twice as long as it did when it was new)

SOURCE: valve adjustment

You need to replace the flapper and you will need to purchase one specifically for the Kohler toilet. I have the same toilet and tried using a generic flapper and from experiance, it didn't work until I bought the correct one and I'm a plumber! Have a great night.

phmaddnes

• 25 Answers
• Posted on Jul 04, 2009

SOURCE: Running toilet

Mine does that also, here's what I found.; I am on a well and occasionaly sand gets caught in the valve thingy... Take the tank lid off, turn the arm that attaches to the float assy. 1/4 turn towards the back of the tank and take it out. Rinse off the gasket and pin as well as inside the hole. Reassemble and it should solve your problem.

SOURCE: toilet fill runs periodically works well but wastes water

Sounds like your flapper is leaking causing the water in the tank to lower until it triggers the fill valve. Replace the flapper (they're cheap and wear out easily).

SOURCE: new water valve makes ahigh pitched whistling

I had exactly the same problem. Just turn down the water pressure @ the valve on the water inlet line. While you have the toilet lid off, you may want to remove the fill valve (1/2 turn counterclockwise on the plastic nut attached to the water-in line), and clean the rubber diaphrams (there are 2). They will sometimes get gritty and this will cause some fill noises and leaking.

SOURCE: I have a new Kohler 12kw res generator on propane - backfiring

Is the outside air temp cold. These generators will backfire if it is real cold and if the propane pressure is low. It is suppose to be 11 to 12 inches of water colume at the generator fuel input. drygwals