Originally Posted by Feloniousnick
Sounds like the asa on one is slid further more than the other, you can open the frame, and there are holes in the bottom that loosen the asa and you can slide it to where you like it and re-tighten it down.
it has nothing to do with the position of the asa, its inside the asa! one is deeper than the other and the tank only threads in part was and the needles won't even reach it! does that help at all!?