Could acv be causing diarrhea?

[Tracyree]

I've been adding apple cider vinegar to my hens droning water for a while now and have noticed they've had dirrhea on and off for a while now as well. Honestly, I don't know which started first, the acv or dirty bottoms.

Could acv cause diarrhea??

I'm cleaning bowls tomorrow and am going with plain water, but am cuirous.