Question

img4637   I sent you an email and you responded that you would need to see a picture of the vales to tell me how to open and close them manually.  I am going to attempt to do that Hope it works.
         John

Answer
Hi John,

The lever when moved to the on position keeps open the valve until you move to the off position. This like a quarter turn.. you can also open the valve using the bleed screw,the plastic one, loose a little and the valve will open. Be carefully not to unscrew to much or it will jump away.

Regards
Guillermo