Necessary questions to ask before signing a rental agreement and driving off in an RV. FAQs about insurance, damages, additional charges, generator, and reserving campsites. Renting an RV for the first time can be exciting but like slide outs, hookups, power sources, and blackwater tank may be unfamiliar. You need to know all these things and more before you rent an RV and reserve camp-spots. Based on my years of experience, I cover the basic questions you need to ask before renting an RV.