Care for RV fresh water tank
Question: Is there something we should add to the water in our holding tank for clean water? It is starting to have a musty smell.
Answer: You should make sure you sanitize your fresh water tank on a periodic basis. Please see our page on this subject at
www.your-rv-lifestyle.com/sanitize-rv.html.
If you are referring to your gray water tank, we just make sure we flush the tank thoroughly with clean water every few times we empty it. We have not found a need for holding tank additives for the grey tank.
Also, you should keep the valves closed on both gray and black water tanks. Keeping them closed helps prevent build up of waste deposits in the bottom of the tanks and helps prevent the seals from drying out. So you will help prolong the longevity of your tanks.
Also, if you leave the valves open, you will suck odors right through the open valves into your rig and the neighborhood. Keep them closed and only open them when you need to empty the tanks.