Hallo.

I have just set up a doser maxi controlled by a Profilux 4. And it works very well :-)
Question 1: Second pump on the maxi doser are used to dose some water from the aquarium/sump to a bucked, next to the aquarium, to compensate for elevated NaCl buildup caused by dosing balling salts. When I need to empty the bucked can I then take the hose from the sump and then use the maxi doser reverse function and empty about 20 liter in another bucked. Will dosing 20 liter at high speed on reverse damaged the maxi dose?

Question 2: Do you recommend a way to suck up water from the sump so I won’t get debris/ small objects from the aquarium water that could block the hose ?