To me it kinda looks like your ATO sensor is really deep in the middle chamber.
You want it to fill the water high enough that it just barely cascades from the heater chambers into the middle chamber.
I ran this tank with the pump always cranked to its highest so its not a pump issue.
You want it to fill the water high enough that it just barely cascades from the heater chambers into the middle chamber.
I ran this tank with the pump always cranked to its highest so its not a pump issue.