The reason that you may not have found information on flushing your tanks is that your trailer may not be equipped with a built-in holding tank flushing system. If it is equipped with one you would find a female garden hose connector near the holding tank dump valves in your trailer. You would connect your garden hose to this connection and use that to flush your holding tanks. Do not confuse this connection with the city water connection that is on your trailer.
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