Don't really need any special ppe for hypo and ferric. They're common industrial water treatment chemicals, meaning they're handled daily by low skilled worker

Don't really need any special ppe for hypo and ferric. They're common industrial water treatment chemicals, meaning they're handled daily by low skilled workers without much news of accidents. There aren't even any special containment requirements for small quantities <500 gallons. Crystalized these chemicals are very stable and represent low risk to operators. As a yard stick of cost: surface water treatment costs somewhere in the neighborhood of $1/1,000 gallons in the developed world.