Nah man the water is too fast for the speed at which you can place the pebbles. I'd give it 2-3 more seconds before it starts rising. Dig the concept though! Looks like a fun puzzle platformer.
Thanks for the feeback! Yeah, I originally had it slower, but sped it up last minute cause I thought it would be too easy without enemies. I think 3 seconds was definitely too fast so I posted a version where it's back to the original slower time with a button for optional faster mode now.