When I purchased the Rock ‘n Row, it came with some serious serious septic sludge issues in the holding tank. This article and video shows you how I am fixing it. Septic systems and holding tanks are subjects that I never cared to know anything about. However, shortly after purchasing the Rock ‘n Row, I realized that something was amiss with its black water system. I decided to document my ‘adventure’ with marine toilet systems for those poor boaters who are in a similar situation….