You'd do much better applying vacuum to the prefilter line or better yet to the hard line on the right(?) firewall and "pulling" the fuel up to the engine same as the lift pump does.

Using comp air, about the time you get fuel to move out of the tank is "about" the same time the tank ballons out and deforms from the pressure being pumped into it.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)