Unknown dinghy. What pressure?

[Gav501]

I've brought a dinghy about 2-2.3m.
Wooden slatted floor and wooden transom.
2 inflatable sections, one each side.
Twist lock valves and no markings on them.
I can't find any markings, so don't know age or manufacture / model.
I've got a bravo BST 12 HP pump.
The man i brought it from used a hand pump and no gauge.

What pressure would you recommend?

Thank you

[willk]

I'd try it at 2 or 2.5psi. If that seems firm enough for your requirements, I'd leave it at that (old seams, low spec?). A modern airdeck boat needs about 3.5psi for rigidity.

[Gav501]

Ok thank you