At 20 to 40 ml per litre

or 1:50 for squeegee work

Direct fit

This listing is the 5 litre drum

Dirty Grout Demon™ Professional Tile & Grout Cleaning Brush with Handle Base UOM:EACH At 20 to 40 mlThe Professional Grout Brush Designed to Clean Faster, Last Longer and Restore Heavily Soiled Grout Lines The Dirty Grout Demon is a professional tile and grout cleaning brush engineered specifically for carpet cleaners, restoration contractors and hard surface cleaning professionals who demand better results than ordinary grout brushes can deliver. Featuring premium DuPont Tynex Nylo Grit bristles infused with silicon carbide abrasive particles, the