When water pressure of 100 psi is used in conjunction with an inline proportioner for the production of the mechanical foam, a 5-gallon can of liquid foam will last __________.

Correct Answer: Option A — 1-1/2 minutes

Standard 5-gallon containers of mechanical foam concentrate mixed at a 3 percent or 6 percent proportioning rate through typical portable inline eductors at 100 psi are expended in approximately 1.5 minutes of continuous discharge.