Manual Brake???

Hi guys,

Im having trouble with getting my manual brakes to keep pressure. I have all new hard lines, proportioning valve, and master cylinder.

I have noticed that the proportioning valve is leaking a little bit, but I cant seem to get it to stop. Everything is super tight. Actually more tight than what I would have liked to put it.

There is no air in the system, we have bleed the brakes many times to assure this. There are also no leaks from any of the wheels.

Im not sure if that PV is the whole problem or what else it may be. Im going to call Inline Tube monday to talk to them about it leaking so maybe I can get a new one sent out to me. Just wanted more opinions and if anyone else had a issue like this.