Hello all,

I’ve been racking my brain trying to think of how to do an AWC with my current setup. I think I have all the equipment to do it, I just need to figure out how to code the apex to do it.

Equipment wise I have a separate DIy ATO not controlled by the apex. It’s a dual float setup. The upper float is redundant to turn the top off pump off in Case the main float sticks.

I have a sump drain pump that is connected to a drain.

I have a sump fill pump that is inside the salt mix container.

I need to devise a way that:
1: shuts off the ATO pump while the sump fill and sump drain pumps are running.
2: takes out x amount of water and puts fresh salt mix water in until normal ATO operating levels.

The way I change water now, I manually flip off the ATO pump (everyThing is hooked to a DJ switch strip) I manually flip the switch to drain the sump, I manually flip the switch to fill the sump back up, manually flip the switch to turn the ATO back on once the normal water level is reached.

I want to automate this procedure

Any ideas?