I have emailed them to ask for a performance chart.
Are there any generalizations about performance curves for diaphragm air pumps? wondering if I can't get one, if I can approximate from others' data. I realize you may have just been throwing out numbers, but if max pressure is 17 psi, and I'd be operating at 4 psi (likely - I have to measure, but I'm thinking about 8 feet depth) and have half the output, does performance tend to drop off exponentially, or does it tend to be more linear? (i.e. 8 feet may see at 25-30% drop?)
