I used to have trouble with excess foam in my pour. I keep my kegerator at 38-40 deg and keep pressure at 15 psi. I recently changed the 5-6 foot line and attached 10-12 feet of 5/16" beverage line and that really helped. It keeps my ales at the right carbonation level all the time and gives me a smooth pour with just the right 1/2" head.
You shouldn't have to make adjustments to your pressure when you're ready to pour. And if you lower your psi to allow for a better pour the beer will lose its original carbonation level over time. Find the balance... 1ft. per psi. is a good rule of thumb.
I purchased enough of these to keep one in each keg. It makes a world of difference with 5' lines. I use two if I'm serving with a cobra tap at a party. Technically they aren't FDA approved, but I've not had any problems in 9 months of use.
I hope these work. I got my kegerator up and running about a month ago. My first keg was a cider that worked perfectly. Put a pale ale on tap last week and it's straight foam. I force carb it but a week later I would think it would have pretty much leveled out. 5' lines, peerless taps and about 13psi.
Question: Can you have too long of lines?
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you can have too long or too short lines - it all comes down to resistance. the line resistance, the tap resistance, etc all have to be sized appropriate to your service pressure and beer. the epoxy mixers simply add resistance inside the dip tube instead of as more feet of line. they don't work any magic other than that. it's a good idea to buy your line 50' at a time and then try tapping with 10' and see how it works, cut another piece at 7' or 5' and so on and adjust the line length to get a good pour. the mixers can shorten the line length needed, but i don't know if anyone has come up with qualitative numbers on how many mixers at what length is equivalent to how much line length at a given service pressure... would be an interesting experiment though.
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