Whats the rule for psi/sealevel?

[TheSlavik]

Looking to find out how much I should compensate the psi for 2200' above sealevel. Is there a chart somewhere? I searched but found nothing.

Guinness is supposed to be served a 40-42 degress, @ 38psi. Is that 38 psi at sealevel? If so, what should I be at?

[monkey710]

-For every 2000 feet above sea level, you must increase the pressure by one
pound.

All recommended pressures are usually at sea level, so I would say you should be at 39 psi.

[Scott Zuhse]

Starting at 1000' (sea level is defined as 1' to 1000'), for every 2000' change above 1000', adjust CO2 PSIG one pound. This does not apply to Guinness since mixed gas is utilized.