looking for a few good tips........the pressure washer i'm starting out with isn't the best but it's all i have right now and i'm trying to find the right kinds of chemicals to use on vinyl and gutters where the chemical does all the work and all i have to do is rinse, rinse and rinse some more? trust me i hate bothering yall with all these questions that yall probably already answered a million times but its the only way i know to find out...thanks