found my leak sadly my new z1 leak tester had more leaks than my entire system. Schrader valve was leaking, I tightened it, it still leaked, installed New one, still leaked. also if you look close it's leaking from the center of the plug itself as well. I have to Send it back, wait for it to be found faulty then they will send a new one and reimburse for the return shipping. Easier and faster to make my own. hrest ttps://youtu.be/VZBb7vYmGuk