Replacing 2 trailer air tanks with 1 tank?

I’ve removed the tanks from this trailer that are 8” in diameter and slightly narrower than the frame rails. Was wondering if I replaced them with one tank that was comparable to both in capacity, would that be sufficient? I’m gonna just run one valve(FF2) for the spring brakes.

 

Cause, I got room for a bigger tank and I’m going to only one valve. The old tanks need replaced. One tank, one valve. K.I.S.S. .

 

“Sometimes”, yes but other times not so. To think, or say so, would be painting with a broad brush. I’ve been looking at my own trailers(they all have multiple tank and valves) and looking at several others. Some reefer, low boy, end dump, dry van,……. and I found quite a few that surprising to me, have only one tank. Now, I’m not to saavy on the one tank and FF2 valve just yet but I’m willing to learn and try it. One thing I’ve learned is, just cause it ain’t been done, don’t mean it ain’t doable. It could also mean it’s not possible. That’s the reason my original post, is a question. Looking for some knowledge.