Originally Posted by Encore_325SS
Where is the "winterize valve" . I have only been able to locate low water drain valves and vales inside for the hot water heater.
If I'm telling you something you already know, then I apologize. But you need to understand that "Winterizing" and "Sanitizing" are entirely different processes employing different mechanisms. Winterizing utilizes the water pump to draw antifreeze into your fresh water system without
putting the antifreeze in you fresh water tank. You don't want antifreeze in that tank. That you just want to completely drain for the winter.
On the other hand, when sanitizing your fresh water system, you do want the sanitizing solution (whatever you use) in your tank as part of that process. If you have a gravity fill for your fresh water tank anywhere on your RV (typically on an outer wall near the tank), use that to pour the mixture into your tank. If you don't have one, then another way is to pour bleach, in the amount you need for your size fresh water tank, into your empty fresh water hose. With that done, you can quickly attach your hose to your fresh water fill and fill your tank with fresh water. The fresh water will clean the bleach out your hose, and the proper amount of bleach in combination with the fresh water will fill your tank in the proper proportion of bleach to water for sanitizing your system. At that point, you can use your water pump to send the water/bleach mixture thru all you fixtures to sanitize your system. If you don't want to put bleach in your fresh water hose, there are various "appliances" on the market to pour the bleach into to do the same thing of mixing the proper amounts of bleach and water for your fresh water system to do the job. Hope this is helpful.