Toto Bowl and Tank Combo for Washlet C5

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As the last item in our recently completed bathroom remodel, we decided to get a Toto Washlet C5. I assumed that it would fit on our existing Kohler Santa Rosa toilet, which it does not. The one-piece design won't allow the Washlet to be mounted far enough back. As pointed out in other threads, it's hard (at least I couldn't do it) to find Toto toilets with the T40 hole that aren't also sold with a Washlet. I downloaded a number of spec sheets from Toto's website for their Washlet-equipped toilets and found a bowl / tank combo that we like. Each is used in multiple factory Washlet-equipped combinations, but I can't find where they're used together.

Is there any reason why we couldn't use a C776CEGT40 bowl with a ST746EMA tank? I can easily order both for pick up in a few days at the local big box.

Also, aside from the wax ring for between the flange and the bowl, would I have all the parts I need to do the install?

Thanks!
 

Terry

The Plumbing Wizard
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cst746-terrylove-12.jpg


ST746E tank with a 2" flush valve

st776ea-terrylove-0.jpg


ST776EA with a 3" flush valve

The 746 dual flush is not compatible with the 776 tanks.

By the way, I sell the CST776CEFG-01 for $282.00 for a complete toilet less seat.
Same price if it's a Connect bowl too. I don't ship though, just local to the Seattle area.
 
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Thanks, Terry! Glad I asked. That would have been a disappointing thing to discover after getting everything home. Wouldn't be the first time...The Santa Rosa I'll be replacing is a chair-height model I bought accidentally many years ago. I'll be glad to see it go.

Seattle would be a pretty long drive from southern California, even for a good price like that! I found an online outfit that somehow has the C776CEGT40 bowl and ST776EA tank for a decent price with free delivery.

Thanks again for your help!
 
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