For general cleaning of dirt and grime from chrome surfaces use SORTED Dirt and Grime which safely cleans all outdoor surfaces.
Simply click the pack onto the end of your hose, spray on the formula and leave for 2-3 mins to penetrate. Then hose off. A wipe will aid in the removal of any stubborn marks.
SORTED Dirt and Grime removes mud, dust, salt water, surface oil, bird droppings, insect marks, for all outdoor surfaces.