Help with home soda setup

[00castle]

I purchased a used 5 head Coca Cola setup locally and installed it in my man cave. I got the water hooked up yesterday and in my rush to see it work, I hooked up the water line to where the CO2 line should go on the carbonater and turned the water on. I have not attached any CO2 or syrup up yet. When I turned the water on and it filled the carbonater tank up using the CO2 port....have i damaged anything in the carbonater or is it still good. Thanks in advance.