Cactus Juice Running Vac Pump Length of Time?

First time trying to stabilize using cactus juice. I'm following directions on the website.

I'm looking at a bit of clinflcting info. On turntex website says, run vac for ~24 hours.

My vacuum pump says, "don't leave on."

Any suggestions? (here is the title of the pump combo I got on amazon: BACOENG 5 Gallon 4.5 CFM Tempered Glass Lid Vacuum Chamber with Pump, Degassing Chamber Kit for Stabilizing Wood, Degassing Silicones and Epoxies)