New Defensive Building: Water Tower

I have an idea that will finally be able to make that ocean/river/lake useful. Behold, the water tower! This tower would be like the inferno tower and can be changed from single target to multiple targets. What it would do is that it would shoot high-pressurized water at ground troops and push them backwards (I haven't thought out what it would do to flying troops if anything). It would be available at TH8 for I was thinking 1,500,000 gold and could be upgraded to level 2 at TH9 for 3,000,000 gold and upgraded again to level 3 at TH10 for 6,000,000 gold. It would have to be rearmed with gold. I would like to know if this is a good addition or not in the comments as well as the poll.

A "water" tower isn't a good idea because think: How it would be? Designing it would be hard as water is liquid and a tower is solid (pretty obivius, no?), so I think a better idea would be instead a frost tower which throws icicles and does double damage to lava hounds. And the price is sightly low for TH 9/10. I think a new defence (like a tower as we said) will come at the unfamous TH 11 (which I think it would be ice themed or water themed for a water defence like yours).
In average, I think your idea could be more organized with equilibrated prices, DPSes, HP, etc...