Forum Discussion
bobndot
Jul 13, 2020Explorer II
The threaded port you are asking about seems to be a black tank flush. As suggested hook up a non potable water hose to it and you will head water entering your black tank to rinse it. Only run that water for a short period of time because it will fill your black tank as it is rinsing it.
It appears that your hose is threaded to a normal looking 'city water hookup'.
That gives your water lines a pressured connection to use water.
You also have a water fill port to fill your holding tank to carry an on-board water source so you can use your 12v pump to pressurize your water lines. That water fill port is normally just a capped gravity fill tube that is connected to your freshwater holding tank. If you wanted to or had to you could use a funnel and gallon jugs of water to add water to your holding tank, its a gravity fill tube.
It appears that your hose is threaded to a normal looking 'city water hookup'.
That gives your water lines a pressured connection to use water.
You also have a water fill port to fill your holding tank to carry an on-board water source so you can use your 12v pump to pressurize your water lines. That water fill port is normally just a capped gravity fill tube that is connected to your freshwater holding tank. If you wanted to or had to you could use a funnel and gallon jugs of water to add water to your holding tank, its a gravity fill tube.
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