Please help! Toto THU460.6D-A flush valve replacement

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Celeste Januszewski

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I had a hell of a time getting the flapper off the flush valve on a one-piece Toto CST864 toilet -- and ended up breaking off one of the pegs that holds the flapper on. Now I need to replace the whole flush valve, only to find that the tube is now replaced with a tower.
Is this a relatively easy DIY replacement? I've not had any luck googling for a video on how to do this.
Is it time to call the plumber?

Thank you.
 

Terry

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The flush valves, both the flapper and the tower can be remove with a Philips head screwdriver.

thu460-terrylove-01.jpg


The tower that lifts and drops, with the chain attached rotates out counterclockwise from the flush valve.

thu460-terrylove-02.jpg


thu460-terrylove-03.jpg


The securing blocks pivot inward for removal and inserting, and then swing out to hold the flush valve to the bowl.
A Philips head screwdriver is all you need. The picture here doesn't show the rubber seal that sits in the groove there.

If you're removing a flapper on an existing toilet, sometimes a box knife is good for cutting off the rubber flapper, being careful to not harm the pins.
 
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