Originally Posted by Quarter Acre
My fear would be that the liquid that you are introducing into the aeration air stream would settle in the line and render the diffuser inoperable. I once ended up with pond water in one of my three diffuser lines and that diffuser stopped bubbling. Once the water (a gallon, maybe two) was removed by pulling the diffuser and disconnecting the line...the diffuser was back in operation. I was amazed that the water was not able to be pushed out by my 1/4 hp pump, but it must have added enough resistance in that line to re-route the air flow to the other two lines.

As Esshup mentioned, distribution would be unpredictable in a 1 acre BOW with only 3 diffusers. 3 diffusers may be plenty for aeration purposes, but relying on them to work a chemical throughout the whole pond would be very questionable.

I think I may have seen a post you made about that when I was searching the forum to see if anyone had ever tried it. Did you try turning off the other two lines when you had that issue?