Me using 4.5 in diameter tube feels and works much much better to vac pump my #bigcock.
Elevati0n is factor, at 7,000 ft elevation, max gauge pressure is 11 psi, insted of 14.5 at sea level...
Elevati0n is factor, at 7,000 ft elevation, max gauge pressure is 11 psi, insted of 14.5 at sea level...