Air and sediment coming through taps

[drezter]

I am seeking some help with my well-drawn water (Drilled well and submersible pump). A few months ago I noticed some air in my water lines when turning on the taps (both hot and cold). I did basic troubleshooting by opening all taps to drain any air. Also emptied the pressure tank and refill it. I think the air is coming from the well, and also I noticed my filters getting filled quicker with sediment and seeing a bit coming through my taps. Anything else I can try please respond.
Thank you
Andre

 

[Valveman]

Remove the check valve at the tank. If then the pressure leaks down when no water is being used, there is a hole in the drop pipe in the well. This will cause air and stir up the well making more sand.

 

[Brad.smith3485]

Is the pitless adapter leaking? Pop the well cap and run water to make the pump run. If you're seeing or hearing spraying from the well casing, you have another starting point