preferred method for ato?

[jwalters103]

considering different ways of setting up for ato. which one of these would be preferred and why?

1) using float or optical sensor to kick ato on pump when level is low

or

2) using salinity probe to kick on ato pump when salinity rises?

 

[AQD_ottawa]

option 1- becuase your water level is not governed by the user remembering to calibrate the probe and keep it clean

 

[Freed]

.