Knocking when not accelerating

It’s coming from front right side and gets louder. Also noticed it happens when damp or raining.

If not the ball joint, check lower control arm bushings and the ends of the torsion bar etc. The jarring from hitting the potholes might have caused worn out parts to start moving around or the end of a cracked torsion bar (like the one on my car which hasn't broken yet) to fail. That's very low mileage for any of those things to be failing though so if you can't find something a visit to a good alignment shop might be in order.

Thanks, will have all checked out this week and get back to you!