Store your dumped and rinsed black tank with clean water and a treatment product. To further prevent the above-mentioned issues, we recommend that you store your RV with a black tank full of fresh water and a treatment of a high-quality bacteria and enzyme product like RV Digest-It.

Should I keep water in my black tank?

Most guides suggest you leave the black tank valve open, so that water doesnt back up and end up flooding your RV through the toilet! If your RV doesnt come with a built-in black tank flush system, it is possible to install one aftermarket.

How much water should you leave in a black tank?

Caution: NEVER leave the black valve open The liquid will drain away leaving you with a solid buildup in your tank that can be a costly repair job. 4. Keep the black tank valve closed until the tank is at least 2/3 full. (Dumping the tank when it is less than 2/3 full will not allow the tank to empty properly).

Should you leave black tank empty?

This is very important. Leaving a black tank valve open is an absolute no-no. It will cause all the liquid to flow out, leaving the solids no way of draining. Always make sure the valve on your black tank is closed completely after dumping.

How do I know if my RV black tank is full?

There is another way to know your tank is full (or close to it) besides using sensors or sound. “Sound” is also a good indicator, but in addition to that method, the closer to full, the more it smells (even if you use chemicals). Youll want to dump for sure when you cant take the smell any longer.

Where does the poop go in a RV?

Flushing Basics Rather than a handle on a tank like at home, a travel trailer toilet has a pedal located underneath the bowl. Pressing this pedal with the foot causes fresh water to rush into the toilet and a flap to open at the base of the bowl. The waste is flushed into the black water tank mounted under the trailer.