Thanks for clearing this up a tad.
However, I do have this question still.
First of all, you surely know that the reason Venus is so hot is because of it's Greenhouse.
Now, if you create this Bosch reaction (I'm not into Physics, so for now I'll take your word on this and won't ask for details of what the Bosch reaction is) and manage to turn a good deal of the atmosphere into water, then won't you still be delaying the inevitable as Venus will still have Carbon Dioxide gasses, they've just been spread out or thinned out. Overtime however, that will put you back where you've started.