Hi, i have the waterbox marine x.60.2 also. I just started thinking about getting the Klir DI-4 to replace my filter sock. I was out my sock every three days with a garden house and then let it dry. Drop a clean one in and then rotate it next 3rd day. I also put about 5 spoons of BRS carbon is a bag in the bottom of my sock. Change carbon every 6th day. Its not that bad but have considered the Klir DI-4 . First, are the sensors dependable. I do not want any overflow accident due to a sensor not rotating the felt and the water level raising up. Also the controller looks like my Coralife ATO unit. That Coralife push in connectors for the cables get bumping and will not start my ATO fill. Works great as long as i dont accidently touch any wires that might make it loose contact. Have you had any issues with the plug in connections on the controller and the sensor not working ? Either it not working or overflowing? Would you buy it again or stick with the socks that have never had a issue other than having to clean them so ofton. Thanks