Our RV dealer showed us the proper way to flush our holding tanks, at least in his opinion. There are as many different ways to flush RV holding tanks as there are opinions, some better than others. I was very nervous about handling the sewer hoses and how to hook up to the campground sewer systems and even how to flush our RV holding tanks. Come to find out, I was worried about nothing, it’s a very simple process and if done correctly can keep your grey and black tanks clean and usable for years.
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