Need advice on Autopot Airdomes

I am at the point of turning on the Airdomes for the AutoPot system and realized that I messed up and covered the airdomes with the clay pellets rather than 2/3rds covered. Is this still going to work? Also, I think I read somewhere that the air pressure needs to be 40? But I really have no way of knowing what the airpump is putting out. A search is not helping me. I am using the ActiveAqua 4 port pump (AAPA15L) which makes me think that the 40 is in liters? And I should turn it up on high? I just do not know on this one.