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How in the world do I change the fill valve in this Toto CST416M?

6.8K views 10 replies 4 participants last post by  Ghostmaker  
#1 ·
I have a toilet. There are many like it, but this one is mine. The fill valve is broken (the plastic clasps in the base have snapped). I know how to change the fill valve in a normal toilet, but this toilet has decided to hide everything...

I can't get my hands or a tool on the water supply nut. I can't get my hands or a tool on the toilet tank nuts in order to separate the pieces. I'm happy to call a plumber, but I don't want her to come over and tell me the toilet has to come out to replace the fill valve. I'd sooner replace the entire toilet.

Is there some trick I don't know about?