Installing the Neptune ATK Top Off System - BRStv How-To
Installation is pretty straight forward, placing the magnetic sensor in your sump or return pump compartment to monitor the changing water level. Place the pump in your favorite ATO reservoir (we like the Trigger Systems ATO Containers) and plug everything into the FMM module.
The ATK does not even need an Apex Controller to function. If you have an Apex, you get bonus features, however, without a controller, the ATK will work just fine.