Equipment

So I came home, and found my return pump sucking air and blowing it into the DT.

Open the cabinet doors to find the water level in the return area was low....
now I know the water level didnt evaporate that much as I added like 2-3 gallons of top off yesterday.I adjusted the return pump flow down to allow the water to catch back up and then was able to open the valve completely open again and things stabilized and no issues....I added another gallon of top off just to be safe... ...