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Old 04-15-2023, 01:23 PM   #1
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Unhappy 2015 Jayco Precept 35UP, water fill

Can someone explain the 2 water fill valves that my coach has? One , upper valve is labeled city water fill with a brass fitting. Below is another capped fitting with no label. My manual has no picture and only refers to a city water fill valve. Please only message about the 2015 since the layout seems to be updated for 2016. Thanks for the help.
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Old 04-15-2023, 01:50 PM   #2
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What happens when you hook a hose to it and turn it on?
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Old 04-15-2023, 04:47 PM   #3
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From the manual, I would guess it is the black clean out.

https://www.manualslib.com/manual/979405/Jayco-2016-Alante.html?page=77#manual

I don't have one though, so can't say for certain.
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Old 04-15-2023, 07:56 PM   #4
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[QUOTE=Boiler01;1105729]From the manual, I would guess it is the black clean out.

https://www.manualslib.com/manual/97...page=77#manual

I don't have one though, so can't say for certain.[/QUOTE
]Thanks for your reply: Yes after more looking and reading I found a warning label next to the fitting about the black water flush and to be sure the the black gate valve remains open for the procedure.
It would have been nice if Jayco could have labeled the fitting like they did for the city water connection.
My wife and I also have a 2004 32Foot Coachman Mirada which came with a 2 inch plus manual which describes EVERY system in great detail.
I do like our 2016 Jayco Precept 35UP quality so far, just learing how it works so I can maintain it.
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Old 04-16-2023, 11:21 AM   #5
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What year is your coach? Your first post you say 2015 and your last you say 2016? On 2016 Precepts the second connection is for your black tank flush and being 6 years old the sticker may have fallen off. Hook a hose to it, connect you sewer hose to it and turn it on and if clear water starts running out and you can hear water hitting the wall of the black tank then Bingo! That's what it is.
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Old 04-16-2023, 11:43 AM   #6
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Thanks Vicr for taking the time to reply. I did find the label and was finally able to determine its function. Sorry to cause the confusion about the year. When Jayco built my unit manufactures were alowed to title the base chasis within a 3 year period. So my RV was a 2014 Ford F53, Jayco built it as a 2015 and titled it and sold it as a 2016. That law has since changed and the RV manufactures must title within a 2 year period. Thanks agian for you reply.
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Old 04-20-2023, 09:46 AM   #7
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Your tires maybe 2013s like mine and would have been 3 years old by 2016 when they sold it.
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Old 04-20-2023, 11:49 AM   #8
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Your tires maybe 2013s like mine and would have been 3 years old by 2016 when they sold it.
Yes to all of that about tires. Also when you buy tires you may want to check the dates since tire dealers want to unload their old tires first.
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Old 04-20-2023, 10:36 PM   #9
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Quote:
Originally Posted by Tim Johnson View Post
Can someone explain the 2 water fill valves that my coach has? One , upper valve is labeled city water fill with a brass fitting. Below is another capped fitting with no label..

The top is to hook up the water line for your coach to fill or to have a city connection... the bottom is the black tank flush. Don't use the water to coach hose for that use a separate hose. You hook up to the bottom to flush and spray your black tank. Have the black tank release valve open when you use it or you will overflow your toilet if you are not careful and monitor it closely if you keep it closed.
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