About to replace air spool, and can't remember; lube or no-lube on 0-rings.

[herman]

DOW 111, it was the standard until nitox became popular and like tbone said, it's fine for rec nitrox as well as air.

 

[divad]

Found the white silicone in basement and used that.......... I think its time to straighten out the basement....... where did all this scuba STUFF come from? It looks like a bridge-troll has been living down there.

 

[DogDiver]

WD-40. Lol

 

[Centrals]

I only use MCG111 in all my scuba gear, silicone is too difficult to remove.
I do lube the O-rings on the air spool.

 

[BoundForElsewhere]

I prefer to use any lube that comes in a hand pump.

Wait. What are we talking about?