Aquatronica Dosing Pump Calibration

[Reefreef]

Hi All,

Recently purchased Aquatronica dosing pump and having trouble calibrating. Based on the manual it states that it is recommended to have the calibration at 40ML to get its optimum.

Steps I Did

Got my supportive wife to hold on to the measuring container supplied while i keep pressing on the button repetitively (average 40 times at least or more) until it reaches the 40ml mark. Once done, i click the ok button on controller model 110 and "done" icon appear.

But when i test and initiate the dosing with the timer, it spins barely a round and stops thus not a single drop from the tube.

I tried another method by pressing the button consistently until it reaches the 40ml, but it still gives me the same result.

Any tips or mistakes that i may have done, appreciate your feedbacks to the aquatronica gurus.

Many thanks,