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Thread: Kohler Rialto K-3402 - Flush Ball replacement

  1. #1
    DIY Junior Member thediver's Avatar
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    Default Kohler Rialto K-3402 - Flush Ball replacement

    Hi All,

    I have one of those boat anchors a pre 1998 Rialto Kohler K3402 made in 1992. Thanks to this forum I was able to replace the entire fill valve system due to it constantly running or leaking at the top three screws.

    Now I have a problem with a leak at the flush ball (or flapper). It leaks at various speeds. I took it out to clean the residue off of it to make sure it wasn't that since that helped in the past. This time it didn't work and the leak is actually worse.

    I need a replacement and have tried two different Korky replacement parts. Both didn't work since the size was off by a tad. Has anyone found a replacement flush ball that works with these toilets? If so, I would be grateful for some advice.

    Thanks in advance.

    Amy

  2. #2
    In the Trades Gary Swart's Avatar
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    Suggest you scroll down about 12 messages or so and read the thread, "Kohler Persude". It wouldn't surprise me is you could get a entire Toto toilet for what you will end up paying for the repair parts on the "boat anchor". Might be time to move into the new century.

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    DIY Junior Member thediver's Avatar
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    Quote Originally Posted by Gary Swart View Post
    Suggest you scroll down about 12 messages or so and read the thread, "Kohler Persude". It wouldn't surprise me is you could get a entire Toto toilet for what you will end up paying for the repair parts on the "boat anchor". Might be time to move into the new century.

    Buying three new toilets are not an option or in my budget. I was able to find replacment parts for the entire fill valve assembly for under $30 at Ace Hardware. Kohler sells this part for $120.15. Big difference. Kohler also sells what I am looking for - flush ball for $39.05. I would rather spend that then purchase new toilets and hire a plumber to install them.

    Please just suggest a replacement part for the flush ball if you know of one, not just "get a new toilet."

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    Forum Admin, Expert Plumber Terry's Avatar
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    Normally my son buys a complete kit for the Kohler in the $120 plus range that fixes the problem. He does this for a friend of his every so often.
    With the Kohler, it must be a normal maintenance thing.

    I guess it's like going to JiffyLube for an oil change.

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    DIY Senior Member SamC's Avatar
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    HD and Lowe's both have Fluidmaster replacement parts for a number of brands and models of toilets. You might give that a try.

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    Master Plumber Redwood's Avatar
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    If you upgrade to a new Toto the payback will be as follows...
    The fill valve will cost $20
    The flapper will cost $10
    The toilet will flush 2-3X what the Rialto will do without clogging

    See its economical to upgrade!

  7. #7
    In the Trades Gary Swart's Avatar
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    Interesting how stories change. In the opening sentence of the original question, the writer says, "I have ONE of those boat anchors a pre 1998 Rialto Kohler K3402 made in 1992." In the next response, ONE has increased to THREE.

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    DIY Member grazzy's Avatar
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    Lowe's recently started carrying the fill valve for $9.98. The flapper is tougher, even the kohler replacement doesn't work well. i got one at ferguson's for about $4.00.

  9. #9
    DIY Junior Member thediver's Avatar
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    Quote Originally Posted by Gary Swart View Post
    Interesting how stories change. In the opening sentence of the original question, the writer says, "I have ONE of those boat anchors a pre 1998 Rialto Kohler K3402 made in 1992." In the next response, ONE has increased to THREE.
    ONE boat anchor that has a leaking flush ball that needs a new flapper. TWO other boat anchors working fine. Hope that clarifies.

  10. #10
    DIY Junior Member thediver's Avatar
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    Quote Originally Posted by grazzy View Post
    Lowe's recently started carrying the fill valve for $9.98. The flapper is tougher, even the kohler replacement doesn't work well. i got one at ferguson's for about $4.00.
    Grazzy, do you happen to remember the manufacture and model # of the flapper you found at Ferguson's?

  11. #11
    DIY Member grazzy's Avatar
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    Smile

    what has worked the best for me is the plumbpak 23592. remember, i have the conversion float valve with the hooks on the side. i had to get a plastic chain from a fluidmaster kit because the metal one kept kinking on me, and i also had to fit one of those black plastic washers on each hook to prevent the flapper from moving sideways occasionally. works pretty good with that one. plumbpack also now makes the 1B1X ballcock for it and it's just under ten bucks at lowe's.

  12. #12
    Master Plumber Redwood's Avatar
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    I've installed Gatorskin flappers on them before and had them work a couple of times.

  13. #13
    DIY Member grazzy's Avatar
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    Quote Originally Posted by Redwood View Post
    I've installed Gatorskin flappers on them before and had them work a couple of times.
    I've never seen those in the big box stores. where do you buy them?

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    Master Plumber Redwood's Avatar
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    Plumbmaster handles our truck stock

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    DIY Member grazzy's Avatar
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    thanks for the info.

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