[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Need some expert help with water experiment at elementaryschool

I worry about the tank being made of metal. If it is straight iron, it will probably be non-toxic, but it will rust. If it is galvanized, there will be danger of zinc poisoning. I would recommend painting the entire tank with at least two coats of marine epoxy paint.

Paul Krombholz in muggy central Mississippi, where we had thundershowers yesterday evening.