problem with acetic bacteria

[PorkSlapper]

Also, how old are the plastic/rubber/non-metallic parts in your system? (hoses, everything)
When was the last time you completely disassembled everything (bucket valves, etc) and sanitized it? Kegs? Replaced O-rings?

You need to think about every crack and crevice that bugs can hide in and ensure that they are completely cleaned and sanitized using star san.

HTH-

This is exactly what Im doing after my pale out came out of the fermenter a contaminated mess. new hosing, cleaning everything with pbw, rinse and sanatizing. It was one of the most upsetting moments in my life knowing I had wasted those delicious hops.

[maxwell]

Also, how old are the plastic/rubber/non-metallic parts in your system? (hoses, everything)
When was the last time you completely disassembled everything (bucket valves, etc) and sanitized it? Kegs? Replaced O-rings?

You need to think about every crack and crevice that bugs can hide in and ensure that they are completely cleaned and sanitized using star san.

HTH-

This is exactly what Im doing after my pale out came out of the fermenter a contaminated mess. new hosing, cleaning everything with pbw, rinse and sanatizing. It was one of the most upsetting moments in my life knowing I had wasted those delicious hops.

Did you make a yeast starter? If so, maybe the starter was contaminated before it even touched the wort? Could also be a wort cooling issue.

[dangervil]

Also, how old are the plastic/rubber/non-metallic parts in your system? (hoses, everything)
When was the last time you completely disassembled everything (bucket valves, etc) and sanitized it? Kegs? Replaced O-rings?

You need to think about every crack and crevice that bugs can hide in and ensure that they are completely cleaned and sanitized using star san.

HTH-

This is exactly what Im doing after my pale out came out of the fermenter a contaminated mess. new hosing, cleaning everything with pbw, rinse and sanatizing. It was one of the most upsetting moments in my life knowing I had wasted those delicious hops.

Ahhhh please tell us How it Came your next beer with those new stuff