A local HOA has asked me to submit a two part bid.One part entails monthly general pressure washing maintenance on playground equip in 3 separate parks totaling approx 5,000 sq ft.The second part of the bid is strictly for graffiti removal in those same areas,on an as needed basis.This is where my confusion comes in.How can I bid on removing graffiti that is not presently there?Any help would be greatly appreciated.