tessa_51 replied:

Sorry Bob, I can't answer your question, but thought I'd come in with my own on the same subjest. Does anyone know of a good accurate gauge for measuring pressures in Polyairs. OR, does anyone have a system for inflting/deflating them to a specific pressure. I find they are so small that adjusting the pressures is a pain in the ------ They either have too much air or not enough.

Tessa