What chemical can I use with a pressure cleaner for dirty pavers and limestone blocks?
249200cookie-checkchemical with a pressure cleaner
Chemistry in the real world
Chemistry in the real world
What chemical can I use with a pressure cleaner for dirty pavers and limestone blocks?
Caustic soda. But it works better as a pretreatment. Put a cupful in a 9L watering can, and sprinkle over the area in question. Leave for about 10 min then blast with the HP cleaner