sprayclean

hey guys im new to the trade and site with a few questions first im doing pw partime and have a few jobs lined up through a local contractor which is 5, 2 story new coed dorms then he wants to sighn me up for a new residental house park my equitment is a wisconsin robin belt driven motor with a simpson ceramic pump at 3000 psi cold water is this enough . how would i charge foot/square foot and is there a site about chemicals on resdental homes /drive ways ?