If you answer “yes” to any of these, your RV tanks need professionally cleaned by an RV Technician! Your RV holding tanks can hide some “substances” we would rather ignore. But ignoring can “catch up to you” and cause frustrating or costly problems. Most RV holding tanks accumulate one or more of 5 different “substances”: I have pictures of each of the above, but you’ll probably thank me for not posting them. However, I do show them in my “RV Tips From A Tech” seminar. There is a solution! Pressure washing the inside of your tanks and piping with between 2,000 psi and 3,000 psi. It’s safe and effective to…