adjusting twin tanks tank bands

[galbayam]

hi guys.

i have just purchased an 11l twin set for myself with valves manifold and tank bands for myself.

wanted to know if anyone can help me out and explain how to put the tank bands properly so they are in the right height and that they do not harm or bend the manifold.

Thank you

 

[garyd54220]

Typically, the place to start is with the top band just below the "shoulder" of the tanks and the lower band 11" below that to fit the BP hole spacing. You can fine tune the trim after diving them a bit if needed. Also see:

How to Set Up Double Scuba Tanks | eHow.com

 

[DA Aquamaster]

Step 10 in the above link needs some additional clarification.

As you slide the bands on the tanks, and in particular as you begin to tighten them, be sure that the isolator/cross bar is able to rotate freely. As the bands are snugged up the center to center distance will change slightly, so you need to:

1) tighten the bands slowly and evenly to keep the tanks parallel to prevent the isolator/cross bar from being stressed and potentially bent, and

2) You may need to rotate the isolator one way or the other to allow the center to center distance of the isolator to match that of the bands. If you fail to do so, the tanks will not stay parallel, the isolator cross bar will be stressed, and the bands will not share the load evenly.

You can screw up pretty much any of the other steps and be fine, but this one is vital and deserved a lot more text than it got in the link.