Setting up ATO using 4unit Dosing Pump and Optical Sensors

Cale W

New member
Hi everyone,

Im having some trouble setting up my ATO. I cant work out how to program the optical sensors such that it starts off one of the 4 dosing pumps when the level drops, while not interfering with the continual operation of the other 3. I am aiming to use the other 3 for dosing calcium, carbonate, magnesium/potassium. Can someone please help me?



Matthias Gross

.Registered Member
set the socket functions for 3 of them to "dosing 1" ... "dosing 3"

but: set the socket function of one of them to "water 1" - this will be your pump for ATO (assuming you use level sensor 1)

the dosing unit must be supplied with permanent power