Review on S.T. International Aquarium Dosing Pump by Sara Houck

Imagine my surprise when I found that this new dosing pump does not prime. After trying several methods including replacing the suction tube, I disassembled the pump and found that the rubber peristaltic tube was pinched in two places. A quick soak in hot water and some manipulation and it was straight again, after that the pump worked fine. I use this to dose defoamer into a recovery bucket on our brewery filling machine. The defoamer is very viscous, but the pump still works properly. No more beer foam mountains! Now we need to automate it to turn on and off with the filling machine.