Vacuum Pump Rebuild - Early Model (2 valve)

[smosie2002]

Hi,
I rebuilt the pump and now I'm having doubts.
Do both check valves go in the same way? I put the o-rings in first, then the valves and then the springs. I just can't remember if both valves went in with the flat side up or if one was with the flat side up and the other with the flat side down.
Also, what is the tube of blue stuff for? I'm assuming to lube the two washer-like things that sandwich the diaphragm. I found it later but can always re-do it.
(Should have started this project in the morning...)
Any help would be much appreciated as I need to get the pump back on asap.
Thanks!
Mona

1979 300D