English18Cause 2Improper drawing of beer into the glass.Correction• Open the faucet quickly and completely.• Proper foam should be a tight creamy head. The collar on the average glassshould be 3/4" to 1" high. Beer drawn without head has the appearance ofbeing flat.Cause 3Not enough pressure.Correction• Increase the pressure if beer runs too slowly. The correct flow should fill a 10oz.glass in 4 seconds. (Approx. 8oz. of liquid)• Check the pressure source to determine whether there are obstructions in the airline.• Replace a sluggish air source or the CO2 regulator and gauge.• The tank pressure must always be higher than the pressure used on the keg.• Always apply pressure to the keg before drawing beer.Beer Condition: Loose FoamLarge soap-like bubbles that settle quickly.Cause 1This is generally the same as the Flat Beer condition. See the Flat Beercauses above.Beer Condition: Off-Taste BeerOften bitter and bitey; sometimes completely lacking in flavor and zest. Mayalso have an oily or foul odor, which carries an unpleasant taste.Cause 1Improper cleaning of the tap.Correction• Brush and clean the tap properly. It should be scoured using a detergent, thenrinsed clean.Cause 2Contaminated air line.Correction• Air line should be examined. If contaminated, it should be replaced.