Automatic water change VS sensors

[Anthony Neto]

Hello,

I have a doubt about the sensors.
how many i need? 2 or 3?

-1 for top up
-2 for take the water from the sump
-3 for new water

Or

-1 for top up and new water
-2 for take the water from the sump

Thanks

[Anthony Neto]

some help?

[GHL Support]

For an automatic water change you generally need 2 sensors (one as minimum level and one as maximum level).
Furthermore you need two sockets on your Powerbar (one for draining water and one for filling water).

[Anthony Neto]

For an automatic water change you generally need 2 sensors (one as minimum level and one as maximum level).
Furthermore you need two sockets on your Powerbar (one for draining water and one for filling water).

So the top up sensor cant be use for maximum level?

[GHL Support]

Sorry, yes, this is possible.
The top up sensor can be used also as maximum level, i.e. you chose the setting: ATO & water change

[Anthony Neto]

thanks carolin
i probably have more doubth bit we see later.