Running toilet My one piece Kohler Rialto round front toilet is "running" all the time. It's NOT a flapper problem rather the water fills after flushing but continues to trickle resultng in water filling noises.

You just need to slide the arms of the flapper while rotating away and upwards off the bars; the arms are flexible so they pull away quite easily.

There are some illustrated installation instructions on the Kohler site that may be helpful.

Go to: http://helptopics.us.kohler.com/ics/support/default.asp?deptID=5712

On the left side menu click on Bathroom Fixtures; click on Toilets, click on next under the questions to move to question 18, How Do I Install the 84995 Flapper?

Water pressure in the house may be to high and not allowing flappers to drop. check pressure and adjust as needed.

My toilet is running, how do I fix it? To solve this problem, you'll want to ask the following questions:

1. Is water running into the overflow tube? If so, lower/adjust the float valve. By doing this it will float higher closing the inlet valve.
2. Is the chain too slack or too tight? Make sure the chain has only 1-2 beads of slack.
3. Has the water in the home or surrounding area been recently shut off for some reason? This could cause debris to come up through the water pipes and settle into the diaphragm seal of the fill valve. Flush out the diaphragm seal.

This is not an unusal problem; here is a video that may provide more assistance:

There is a screen @ the inlet to the vavle where the water connects that may be plugged or contact Kohler they will send you a repair kit for the fill valve.

Found your part: http://www.kohlerserviceparts.kohler.com/AccessoriesInformation.aspx?ServicePartID=f5a368efd5b74bcfae7fa0d0bb69bd39

The flush seal is the rubber gasket between the tank and the bowl. You do not have one. So I am guessing you mean the wax ring on the floor?? They usually only get replaced when the toilet is changed, unless you spring a leak. Or are you talking about the flapper inside the tank that holds the water till the flush lever is pulled? Get a new flapper, if it is just the flapper you need, otherwise you will have to buy the whole thing, all these parts are available at the hardware store. I think it is held on by a couple screws in there, might just be a press fit, we don't see too many one piece toilets. And the wax ring is about $2, but the toilet has to be unbolted from the floor and water disconnected, clean off the old wax, put on the new ring, smoosh it back down and bolt it back it up. Don't for get the water line. Check to make sure you have no leaks. Hope this helps.

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.

you unfortunately need a new fill valve. I say unfortunately because they are expensive, (about $120), for that model and not everywhere sells them. It it was a "regular" toilet, the part would be a any home store and cost about $10. Sorry to be the bearer of bad news. How old is the toilet? You may consider replacing the whole thing.

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).

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.