I've been kegging for about a year, but I just got a kegerator (from Beverage Factory) with a 3-tap tower. Over-all, it seems to be working great. I have a duel-control on my CO2 cylinder, with a splitter on one of the outlets, giving me two lines of one pressure, and a third line with a different pressure. I currently have an American Pale Ale and an American Classic Lager on the split lines. Beersmith recommends 18 PSI for these. I have a stout on the third line, which I have set at 10 PSI (also as per Beersmith's recommendations.) The stout is pouring great, but the two pales seem to be foaming excessively. Is 18 PSI too much pressure? If I turn it down, won't I get less than the desired carbonation? The pale ale and lager are both session beers, and I want plenty of carbonation.