RV black water holding tank basics

Leave the black water tank valve closed and wait to dump the tank until it is at least two thirds full. You want the tank nearly full so that weight and gravity will force the contents out of the tank.

If the tank is not 2/3rds full when you’re ready to dump then add water to the tank.

When the tank is empty, close the valve, add water to the tank… enough to cover the bottom, and treat with holding tank chemicals to assist in controlling odors.

Get more information on RV holding tanks at RVbasics.com


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2 Responses to "RV black water holding tank basics"

  1. Great advice!
    Thank you.
    Whithout you, I’m not sure I would want to keep my rv. You make problems seem simple enough to fix and i can understand the logic behind the solutions. Thanks again!

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