Your restaurant, rental property, or commercial property is a valuable investment through our service and maintenance contracts, we keep you running with your bottom line in mind. Sign up now to stay updated on the latest news and offers! I've never been so horrified in my entire life. Used the whole bottle overnight to unblock a slow running bathroom (bath and loo) pipe water now runs freely - exceeded my expectations! Road drains are maintained by the highway authority most roads in our area are.