Any quiet dosers?

[Thor2j]

Looking for a doser that is quiet if there is such a thing. One of my tanks is in the bedroom. I have an apex duo on my main tank and that would drive me crazy at night when I like to dose alkalinity.

 

[deaclauderdale]

My GHL 2.1 is pretty quiet.

 

[Tony727]

I don't hear my calcium reactor lol.

But I agree with the GHL being quiet. I may be incorrect but I believe the dosing pumps brs sells are pretty quiet.

 

[sundog101]

I have a brs doser and I would say it's pretty quiet.