Hello, I just took delivery of my new GHL 2 dosing pump from Premium Aquatics. I must say this dosing pump looks to be very well built and the German made Thomas 24v dosing pumps look like very good quality. I just finished calibrating each pump and have connected the doser to my system when pump number 1 began to make a very audible screechy noise.
The pump was very quiet during the calibration process. Both of the other pumps are still very quiet. When I push down on the upper edge of the pump it becomes quiet. I have removed it and checked inside the pump and everything looks fine. What can you do to help this pump become silent again. I have each pump set on number 3 (fast). I am not dosing a lot, perhaps 60 ml every 24 hrs. Thanks,
Phil.
The pump was very quiet during the calibration process. Both of the other pumps are still very quiet. When I push down on the upper edge of the pump it becomes quiet. I have removed it and checked inside the pump and everything looks fine. What can you do to help this pump become silent again. I have each pump set on number 3 (fast). I am not dosing a lot, perhaps 60 ml every 24 hrs. Thanks,
Phil.