How can I lower the water level in the bowl of a comfort height Kohler 1.6l flush with canister valve?


You can't adjust the bowl water depth - it's set by the height of the trap that's cast into the bowl. However, you can adjust the water depth in the tank as suggested by @Daniel Griscom.

toilet bowl cross-secion

There also might be an obstruction in the trap that's artificially raising the height. Plunge and/or snake should take care of that.

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