For those of you running bean animal overflows or for that matter any overflow. What valve are you running? A gate valve? Or a Ball valve? I know the gate offers much better tuning and ease of dial in. If your using a Gate vale is yours a turn handle or is it a push pull? Is it PVC or is it metal? Does anyone have any concerns running the brass units in fresh water only system? Or Just PVC? Just trying to decide on what valve how much im going to need to spend on them and what style to get. If you have pics of your set up would be cool to see some of those. Thanks!!!