Brand new tires, within a couple weeks after purchase I ran over a screw, and had to get one tire patched.
Now, after the patch, the tire loses about 4 psi per week. It's a very slow leak and I've just been topping it off every Monday.
Could the patch be a bit leaky? Is that normal? Should I have the tire patched again? Spraying soapy water has not identified anything obvious.