Question:
I have a 1,500-gallon tank with a 230 cfm free air, and 200 cfm at 15 inches Hg pump; I want to upgrade to something faster. On hard pulls, the pump gets hot and slow. I understand that more cfm just gets you to maximum vacuum quicker. So would it be better to go to a 300 cfm at 15 inches Hg pump and give it more air to keep it cooler, or go to a water-cooled pump at 230 cfm at 24 inches Hg? My 15-inch Hg pump does it now, but you have to fight it. I know
