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Old 10-31-2016, 10:25 AM   #1
jbird1311
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plumbing route from toilet to tank on passport 3220

Does anyone know the route, if it's a straight drop or have turns in it? Went to storage yesterday and when tank was "empty", i dry flushed and there was water and "stuff" just below floor level. Quite high for an empty tank if it's a straight drop. I cant find any answers on google.

Thanks
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Old 10-31-2016, 10:58 AM   #2
hankpage
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Re: plumbing route from toilet to tank on passport 3220

On a TT it is a straight drop on a 5er usually a close double 45 bend. The tanks are very shallow so even empty it will appear close but a broom stick can help you judge more accurately. It is rare that when you dump that the tank will be completely empty. JM2, Hank
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Old 10-31-2016, 12:26 PM   #3
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Re: plumbing route from toilet to tank on passport 3220

With a decent flashlight, just hold the bowl open. If it's a straight shot, you'll see the bottom of the tank. If it has any turns you'll see the first one. Most all RV's that are NOT fifth wheels are straight.
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Old 11-01-2016, 06:57 AM   #4
busterbrown
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Re: plumbing route from toilet to tank on passport 3220

I'm pretty sure its a straight drop like on my Bullet 308BHS. In fact, as Chuckster stated, you can peak down with a flash light and see the bottom of the tank when it's empty. My blank tank has a plastic ring (probably scrap during assembly) in it that circulates around when the fluid levels are high enough.

As a way to provide a visual to the black tank rinsing process, I will disconnect the city water connection as my blank tank is flushing via a different water hose. I keep the black tank dump valve closed and will hold the foot pedal down on the toilet. With a flash light, you can see inside the tank as it fills with fresh water. When the level is just about at the top of the tank, I open the gate valve and let gravity do it's thing. Make sure your sewer connection is seated properly as the blank tank "dumps" much quicker than than the gray tank.
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Old 11-01-2016, 11:57 AM   #5
jbird1311
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Re: plumbing route from toilet to tank on passport 3220

Thanks all for the replies. I tried with a cheap flashlight. I'll try again with a better light.
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Old 11-01-2016, 12:30 PM   #6
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Re: plumbing route from toilet to tank on passport 3220

You can also use a piece of pvc pipe. If it hits bottom, it will sort of bounce.
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