I need help guys! Water level in return pump chamber

[Areeflover]

Oh oh I see!! Na that my tank Is actually perfectly silent.. you can’t wven hear the return it’s dead silentvrgw only thing you can hear is the old used skimmer I bought

I appreciate all your help guys!! I’ve been in this hobby for 6 years. But this is my first rank with an actual sump lol I am learning a lot about all this

 

[Vin's Reef]

ball valve on your main return. And if it's a DC pump lower it down. You. A lance it out with a ball valve on your return.

 

[Fishfinder]

Add a gallon of water to the sump, see if that fixes it

 

[Erica-Renee]

How about reading the Other threat you started ...

1.Run your system 10 minutes then add enough water to the return pump chamber to a level that the pump is not sucking air.
2.Mark the sump tank at this level.
3.Shut off the return pumps power .
4.When the water stops draining down from your weir and emptying the plumbing pipe. Mark this water level..
4-a If the sumps return chamber or sump over flows .. That chamber or tank is not large enough and changes must be made.
4-B .. If the water in the Return chamber is at a position below its baffle and lower then the top of the tank. I recommend adding some water to a level you are comfy with. Mark this level on the sump (max fill level)
5. start the pump and wait until it becomes stable again 5-10 minutes depending on your drain type.
6. Now Make this water level as your Running level. The first make (2 above) will be your Min Running level.. This will be your Max Fill level... Set your ATO (AUTO TOP OFF) To this level. or manually top off to here.. Never fill the sump chamber beyond this level. Because a power outage or pump failure will cause the sump to over flow.. (If you followed the steps above)
here is a example

hope this helps