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Old 01-14-2014, 03:00 PM   #21
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There's been two potential issues mentioned in this thread, I've had them both.

My previous 5th wheel , a Pilgrim, had the city water and tank flush in the same area, and yes I did hook city water to the wrong inlet. I wasn't lucky enough to have water come out the vent, it came trickling out the door while my wife and I were relaxing with a drink after a long drive.

The other issue, forgetting water in the tank occurred with my Jayco 5th wheel this past fall. On our last trip of the season I flushed the black tank several times, at one point I noticed water leaking in the basement, had a look, and discovered when the unit was assembled one hose on the flusher was not clamped, thus the leak. I got distracted with the leak and forgot to dump the black water tank. A month after closing up the unit I remembered about the water in the tank, there had been some well below zero C nights, guess I'll find out this spring if it got too cold!! Remember...... do what you're doing before moving on to something else..... hope that miscue doesn't cost me.

cheers and have a great day.
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Old 01-14-2014, 08:48 PM   #22
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The first few times I drained my black tank there was alot of paper left so when I use my flush I have to close the valve, I do this about 3 times to get everything out, it's the only way to get the paper out of the tank and yes I do use RV paper in it, I work with a guy who has a tool with a camera on the end so i'm going to have a look to see if there is any blockage in the tank before I add water in the spring
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Old 01-15-2014, 06:32 PM   #23
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Quote:
Originally Posted by lx22f/c View Post
When you install it, route the inlet and mount it near your valves. That way you dont have to drag a hose around the other side of the camper.
That is what I plan to do. Put it near the tank valves so I have quick access to all dirty water control functions. I hope to get the install done in the spring before we start camping again, hopefully any nastiness remaining in the black tank has subsided over the winter. I bought the quickie flush early last summer, just couldn't bring myself to drill the hole.
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Old 01-20-2014, 08:48 AM   #24
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So this weekend we were out, and I decided to tempt fate and run the flush with the valve closed. And as you've probably guessed, nothing happened. No explosion of brown liquid, no toilet-turned volcano, nada, kaput. It just filled up the tank and then I pulled the gate and down the drain it went.

First, I used the toilet and the shower hose to top off the tank with fresh water. Then I dumped the black and grey tanks as per standard procedures. Then I closed all the valves and turned on the Black Tank Flush and let it fill the tank. Once DW said tank was full and I could hear the nozzle change tone, I dumped again and left the flush on. When it was empty, and just the flush was running, I closed the valve again and let the tank fill again. When it got full again, I dumped the black again and left the flush on and the gate open for a couple minutes while I tidied up. Then I turned the flush off, closed the gate, went inside and treated the tank as per normal procedures.

I had DW watch the tank monitor pretty closely for me, but I could hear the sound change as the water level rose in the tank. I never went more than 2-3 feet from either the spigot where the hose was attached (so I could turn it off quickly) or the black tank gate (so I could open the drain gate quickly). It actually worked quite nicely, and I will probably make this method my standard procedure. The only problem is that it still seems to take FOREVER for the tank to fill...
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Old 01-20-2014, 09:47 AM   #25
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It does take forever for the tank to fill up. However I did this on my 2004 JayFlight and the tank was always clean. No problems. Every other year or so I would also put two XXL bags of ice and a gallon of bleach down the toilet after I cleaned it and then drain it later to keep the gunk down. I always filled the tank up with fresh water multiple times to ensure a clean tank prior to the next use. The other thing I do is always load chemicals into the tank with a layer of water. This means the tank never dries out. In the nearly 10 years I owned the JayFlight we never once had any foul smells other problems related to the black tank. I also occasionally cleaned out the grey tank by putting appropriate chemicals in it as well. That helps keep the scum down from soap etc. The grey tank is also kept with a thin layer of water in it at all times. The biggest issue is a tank drying out with solids in it.
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Old 03-19-2014, 08:59 AM   #26
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I just purchased a 2012 28BHS, and tried to use the flush system and had water run into the bathroom.
Does that checkvalve go bad often?
Where can I get a replacement?
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Old 03-19-2014, 09:29 AM   #27
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Quote:
Originally Posted by BlueHaul View Post
After reading Donedroolin's posts I looked in my manual (2013 Jay Flight) and there was actually no mention made at all regarding the black tank flush. I believe that 2013 was the first year Jayco offered the flush valve on the Jay Flight, so I also looked in the 2014 manual, and there's no mention of it there either. So I just called Jayco and asked. The lady was very nice on the phone and her exact words to me were, "You could close the valve but we don't recommend it simply because if you leave it unattended, the tank will overflow." So I asked if there was any other reason not to close it, such as a check valve and she said, "No, the only reason we can't recommend it is because of the potential for overflow."
This is a solid post, imo.

I've flushed mine often and always close the black tank valve, go inside and watch the sensor til it says full, walk back out and pull the valve open.
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Old 03-19-2014, 10:19 AM   #28
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Quote:
Originally Posted by lhpelton View Post
I just purchased a 2012 28BHS, and tried to use the flush system and had water run into the bathroom.
Does that checkvalve go bad often?
Where can I get a replacement?
Link to thread about the very same issue, might help...

https://www.jaycoowners.com/forums/sh...ack+tank+flush

IIRC, I've read a couple of places where people have had problems with that check valve...

Edit: Now that I'm reading your post a little closer, you mentioned that water goes into the bathroom when city water connected to the black flush? It doesn't sound like that would be a check valve issue. Where in the bathroom does the water run? I guess it could be possible for the tank sprayer nozzle to be pointed up toward the toilet? I dunno...
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Old 03-19-2014, 10:55 AM   #29
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Mine stopped up, was inclosed inside furnace/ wh area, flooded both one nite. That b and b 571 vent has been giving people pains for a few years. Called Jayco service and they said leave it off, but get a back flow device to attach to hose outside unit when in use. The device can be found at pluming stores. Contacted b and b and they say the valves will exhaust a certain amount of water under normal conditions. They will also send you a new valve free. When I stated I was not happy about reinstall the same valve over my furnace, they sent a device that replaces the tank flush water inlet, that has a back flow valve built in. Jayco and B and B are well aware of this problem.
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Old 03-22-2014, 10:25 AM   #30
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The water was coming out of the black valve under the sink, not technically in the bathroom.
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