http://www.RVtravel.com Gary Bunzer, the RV Doctor, explains how to properly drain the fresh water holding tank of a recreational vehicle, whether a motorhom.. How to Drain Fresh Water Tank on Any RV. The draining process of an RV fresh water tank isn't so difficult. From start to finish, you can expect it to take 30 minutes or less. 1. Find RV Fresh Water Tank Drain Valve Location. First, you need to find your RV fresh water tank drain valve location. You shouldn't have trouble locating the value.
These instructions go for any cleanser you use to sanitize your fresh water tank. RV Fresh Water Drain Valve Leaking. This problem has several sources to it. If you are drinking water with a few minerals in it, the mineral deposits can ruin the seal and keep the valve from closing for you. That leaves just enough of an opening for water to escape.. How to Drain an RV Fresh Water Tank: a Step-by-Step Guide. Knowing how to drain an RV fresh water tank is crucial, but how exactly do you go about it? Let's walk through the essential tools you'll need and the steps to ensure a smooth draining process. Outline the Tools Needed for the Task