Originally Posted by bwomp313
If it's a rare thing then yes of course you should tell them and help them improve. However, if it's constant like you say then they dug their own grave. Survival of the fittest. If they're not cleaning their lines, what else are they skimping on?
I've had a few beers like this over the years...and I agree it's almost certainly dirty lines, and I agree with the post quoted above. The last part, in particular, is telling. The overall approach to their business is likely sloppy.