Glad to read you are being taken care of. Like you say, there is a 5 psi minimum requirement to maintain integrity. One bag might be permanently damaged.
Does each air bag have it's own shrader (tire) valve? Or do they share one valve? I personally prefer one shared valve so the air bags maintain equal amounts of air pressure, a natural balance, very easy to add and remove air too. If one bag leaks, they both leak and therefore the rig would never lean to one side.
We had rear air bags in our first motor home. It had an on-board compressor with pressure gauge switch and release by the driver's left knee to increase or decrease pressure as you drive. The air bags shared the pressure equally.
The air compressor is seen in the bottom of this picture.
