I have a client (farmer) who has an above ground gasoline tank and a diesel tank, I estimate they are about 1000 gallons each. They are currently wired straight from the panel in the adjacent barn in 1/2" pvc. No seal off, no emergency shut off switch. He noticed the pvc was broken on the gas pump so he wants me to fix it. I will bring this up to code. Will the emergency cut off that I mount satisfy 514.11(A) or do I need another disconnect switch for each pump?