Kohler Rialto K-3402 - Flush Ball replacement

Discussion in 'Toilet Forum discussions' started by thediver, Feb 21, 2008.

  1. thediver

    thediver New Member

    Messages:
    9
    Location:
    California
    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. Gary Swart

    Gary Swart In the Trades

    Messages:
    7,308
    Location:
    Yakima WA
    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.
  3. thediver

    thediver New Member

    Messages:
    9
    Location:
    California

    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."
  4. Terry

    Terry Administrator Staff Member

    Messages:
    14,798
    Location:
    Bothell, Washington
    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.
  5. SamC

    SamC Member

    Messages:
    130
    Location:
    Georgia
    HD and Lowe's both have Fluidmaster replacement parts for a number of brands and models of toilets. You might give that a try.
  6. Redwood

    Redwood Master Plumber

    Messages:
    7,453
    Location:
    Connecticut
    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. Gary Swart

    Gary Swart In the Trades

    Messages:
    7,308
    Location:
    Yakima WA
    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. :confused:
  8. grazzy

    grazzy New Member

    Messages:
    57
    Location:
    Virginia
    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. thediver

    thediver New Member

    Messages:
    9
    Location:
    California
    ONE boat anchor that has a leaking flush ball that needs a new flapper. TWO other boat anchors working fine. Hope that clarifies.
  10. thediver

    thediver New Member

    Messages:
    9
    Location:
    California
    Grazzy, do you happen to remember the manufacture and model # of the flapper you found at Ferguson's?
  11. grazzy

    grazzy New Member

    Messages:
    57
    Location:
    Virginia
    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. Redwood

    Redwood Master Plumber

    Messages:
    7,453
    Location:
    Connecticut
    I've installed Gatorskin flappers on them before and had them work a couple of times.
  13. grazzy

    grazzy New Member

    Messages:
    57
    Location:
    Virginia
    I've never seen those in the big box stores. where do you buy them?
  14. Redwood

    Redwood Master Plumber

    Messages:
    7,453
    Location:
    Connecticut
    Plumbmaster handles our truck stock
  15. grazzy

    grazzy New Member

    Messages:
    57
    Location:
    Virginia
    thanks for the info.
  16. welderman

    welderman New Member

    Messages:
    1
    Location:
    MA
    Kohler K-3402 uses excess water

    I guess most of you are plumbers and know what I'm going to say, but I searched the web to solve this problem and finally had to figure it out myself. So I though this might be a good place to share. My most recent water usage (6 months) was 5500 cubic feet for my wife and myself and we are rarely home. I traced the leak to the Kohler K-3402, but when I shut off the supply line, I found the tank water level didn't drop. So, it wasn't leaking past the flapper. Upon further investigation I found that the leak was between the plastic hose and the hole in the bowl that Kohler tastefully calls the rim-flush. This space is not meant to be sealed, however, all it takes is for the shut-off to be adjusted slightly over the fill line, and water pours through this gap non-stop. In my case, it amounted to more than 100 gallons/day. The moral of the story is to make sure the level in these toilets never gets above the maximum fill line.
Similar Threads: Kohler Rialto
Forum Title Date
Toilet Forum discussions Kohler Rialto toilet 1984 Nov 23, 2013
Toilet Forum discussions Kohler Rialto seal height Jun 5, 2013
Toilet Forum discussions 15 inch rough in!! toto with unifit or kohler rialto?? Nov 22, 2011
Toilet Forum discussions Kohler Rialto flush gasket issue Aug 26, 2011
Toilet Forum discussions Kohler K-3386 Rialto One-Piece Toilet, comments and pictures Jun 17, 2011

Share This Page