The most recent posts are correct about line diameter. 1/4" line will not serve you well unless you have severely under carbonated beer.
The line creates resistance, and the resistance drops dramatically as diameter increases. You need 3/16 line, or possibly more pressure. If you increase the pressure to 20 psi and do a pour as an experiment (it'll be ****, because this is too high), but you should notice that the bubbles in the line will eventually go away at this higher psi.
There is a balance to be struck. Too much pressure and it blows up coming out of the faucet. Too "little" pressure with not enough line resistance and it will foam in the line. You usually only see 1/4 line in commercial setups running 50+ feet line line with glycol, and they serve at a minimum pressure of 15 psi.
I would try smaller line as suggested, and start with 10'.
The line creates resistance, and the resistance drops dramatically as diameter increases. You need 3/16 line, or possibly more pressure. If you increase the pressure to 20 psi and do a pour as an experiment (it'll be ****, because this is too high), but you should notice that the bubbles in the line will eventually go away at this higher psi.
There is a balance to be struck. Too much pressure and it blows up coming out of the faucet. Too "little" pressure with not enough line resistance and it will foam in the line. You usually only see 1/4 line in commercial setups running 50+ feet line line with glycol, and they serve at a minimum pressure of 15 psi.
I would try smaller line as suggested, and start with 10'.