any method removing epoxy paints from cement walls?

Question

removing epoxy food grade paints from water tanks without much damage to the walls

Answer 1

It sounds to me like you are stuck in a serious quagmire. To remove it chemically, will contaminate or seriously damage the walls of the tank. A sand blaster will remove the paint but it will also cause damage to the surface of the tank walls. A high pressure wash may also be an alternative. You will have to choose the lesser of the evils and resurface the inside of the tank if necessary.

Answer 2

use 3% solution of NaOCl ( leander whiting solution ) when ou do that proved your selfb with your owen oxegen soures for more tipe contect me