OK, I have designed a new cock head pump. I utilized common items that sould interest you. From top to bottom we have, 1/4 " oxygen hose, a 1/4" threaded shutoff valve, a 1/2 pint baby bottle, a 1 1/2 inch O-ring, the top section of a telescoping sleeve found at the base of a common office chair, a 2" O-ring, a 2" pvc coupling and a universal silicone donut sleeve for the base.
stay tuned for results,
Spinnelli
