I'm hoping my plan to carbonate my kitchen drinking faucet is as easy as it seems, but would like some confirmation I'm not missing something:
In short, I want to hook my main water line up to a consumption-grade CO2 tank, the same way I would hook up a Keg. I have a separate drinking faucet connected to my main water line, and I'd like to add a CO2 tank, connected to a regulator, connected to an air line, connected to a keg coupler. The Keg coupler would also connect to my main water line, and separately connect through to my faucet. For a diagram of what I mean, check out: www.kegworks.com/blog/how-draft-systems-work/ [No affiliation].
I'm not concerned with chilling or filtering at this point, but in theory would I be able to add in a water filter that feeds into my main water line into the keg coupler down the road? Or would that create problems with making the filter system 'under reverse pressure' from the CO2 tank?
I'm also trying to avoid needing to get a separate water tank to keep under my kitchen sink as that space is limited and I'd like to keep refill trips to a minimum. If my current plan doesn't work, having a tank of filtered water that I periodically have to refill and put under my sink might be the next best thing.
I guess what I need to worry about is whether my main water line is pressurized enough to prevent the CO2 tank from simply emptying out into my water supply?Alternatively, would the pressure from the main water line 'overpower' the CO2 tank such that I would get minimal carbonation in the end product?
Per the comments, if I would need to keep the CO2 tank < the pressure of the water line (let's assume 50-75 PSI), would that sufficiently carbonate the water? If not, would it be possible to add some sort of one-way valve from the main water line that feeds into some sort of water collection tank, that then connects to the carbonation system, so that it could 'withstand' higher pressure?