Slow Leak - Cant find it

Main Train Horns
1

Hey all. I have a slow leak and I cant find it any where. I have sprayed soap and water mixed on every single fitting. It leaks about 30 psi in an hour. Does anyone else have this problem? Ive never had the tank stay at 150 psi. ever. and all my fittings are tight with lock tight and Teflon tape.

thanks

2

If no fittings are leaking, it could be the check valve in the leader hose or the solenoid valve.

3

Check to see if the solenoid doesn’t have crap in it.