Newbie level 2
I have a very simple problem but could use some advice. I have a basic knowledge of elementary circuits but need some advice and I apologize if this happens to be answered in another post I would appreciate it being pointed out. I have a very small pump with a brushless magnetic dc motor it is 12V DC supplied from a 120V AC plug in wall transformer(rectifier?) it draws 0.6A running 7.2W(?) I would like to be able to vary the speed of the pump. I know you can use a POT to adjust the speed, any suggestions? I would like to put the control board or POT into a gang box or small NEMA box. The area might have some water issues, it is for my home brewery. The issue is the flow into the pump inlet is less than the discharge of the pump, I have a ball valve on the outlet but having it 75% closed does not help the issue. The pump will run for 5-10 minutes then stop on overload(?) then restart after a few seconds I think varying the speed is my best bet. Any suggestions on how to properly do this. I am open to a kit or building my own either I can be able to do. Thank you for all your help.