I’m dosing very small amounts into my reef tank, but I often don’t see the drops going into the sump.
It seems there’s air in the lines; is that normal? Do I have to fill the lines with the dosing liquid by manually dosing a larger amount? (NOT into the aquarium!)
Also, does the unit have to be placed above the end of the output line?
It seems there’s air in the lines; is that normal? Do I have to fill the lines with the dosing liquid by manually dosing a larger amount? (NOT into the aquarium!)
Also, does the unit have to be placed above the end of the output line?

