I am such a sucker...
Found a rotary vane pump on e-bay that is only slightly used in a medical setting. It has 1.5CFM (double what my other one had) and up to 10PSI and I picked it up for $49 including shipping. They retail around $300 new. I'm hoping to be able to put this one in my basement and sell the other one. If someone here wanted it I could let it go for the $55 I paid for it plus shipping, it hasn't been hooked up yet. Otherwise I'm going to get an airstone and tubing and sell it as a kit on e-bay.
Anyways, Gast has a recommended Relief Valve for the pump I got. Is that the one I should go with, or would an adjustable one be better? I know nothing about the Gast relief valve except that it costs $14 from a medical supply place.
Bill, would the check valve you have work well with my tubing, or would I need adaptors or something? Also would it work with this low PSI pump?