That's better than iron sulfate. Blue dye can be washed off, sun faded or bleached. I do not tolerate leaking fittings, hoses, or spray guns. It is a safety hazard. No one under me sprays in regular shoes or work boots either. Blue toes or blue socks, not my fault, where are your waterproof/chem resistant knee high boots?
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738