DUNNY-CLEAN, Advanced Concentrate Bio-Enzymatic Plus + Cleaner disinfectant. Kills bacteria & odours. Toilet Head Cleaning treatment – When used will assist with your Poop-ETA Bio-Enzymatic Microbe Eco-System Colony that is living inside your toilet system also holding tanks… Spray or pour Dunny-Clean evenly into your toilet head bowl allow soak time, using a toilet brush scrub clean your toilet head bowl. Spray or pour Dunny-Clean evenly onto your toilet seat, lid, fittings etc… allow soak time, wipe clean using a sponge or microfibre cloth. Repeat as necessary. Hot Water can be used to assist with stubborn staining. Wipe dry using sponge or microfibre cloth.