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09-25-2017, 09:25 PM
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#1
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Senior Member
Join Date: Apr 2016
Posts: 1,011
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Black tank flush mess
Today, we pulled up to the dump station. After emptying the black tank I turned on the flush. In about a minute I had water flowing out the back of the trailer. I shut off the flush and looked, sure enough water had come out of the vacuum breaker installed in the flush line! I had the DW watch while I turned on the flush again, no leak. I figure that the valve stuck then came unstuck and started working again. Should I replace th valve? Just watch it next time? By pass it? I am interested in all opinions. Thanks. Jay
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09-26-2017, 01:12 AM
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#2
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Always Learning
Join Date: Nov 2011
Location: Four Corners, FL
Posts: 21,888
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If it were me, I’d replace it. Water and RVs don’t mix.
__________________
Officially a SOB with a 2022 Jayco Precept 36C
Checkout my site for RVing tips, tricks, and info | Was a Fulltime Family for 5 years, now we're part-timing on long trips
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09-26-2017, 04:49 AM
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#3
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Senior Member
Join Date: Jul 2010
Location: Waynesville
Posts: 14,428
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Isnt your 2504 still under Warr? Have your dealer replace or just send you one! Youroo!!
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09-26-2017, 12:44 PM
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#4
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Senior Member
Join Date: Apr 2016
Posts: 1,011
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Yes I have the 2 year extended FR warranty. I forgot about it. I'll call Camping World and see what they say. I'll let everyone know what I find out. Jay
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09-27-2017, 03:11 PM
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#5
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Senior Member
Join Date: Nov 2013
Location: Kirtland, OH
Posts: 328
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I rip those valves out of all my RV's. Put it back in when you trade or sell. Everyone of my units has had it leak at some time. Use an external back flow preventer on the hose.
__________________
William & Sara
2012 Silverado 2500 HD DA
2014 Cedar Creek 38CK
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09-27-2017, 03:14 PM
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#6
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Pickin', Campin', Mason
Join Date: Aug 2015
Location: South Western PA
Posts: 19,051
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Yep, those inexpensive plastic valves are not worth much for reliability.
A quality brass one will last forever.
__________________
2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2017 Ford F-Series SCREW 4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
F&AM Lodge 358 Somerset, PA - JAFFA Shrine - Altoona, PA
Days Camped ☼ '19=118 ☼ '20=116 ☼ '21=123 ☼ '22=134 ☼ '23=118☼ '24=64
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09-27-2017, 03:18 PM
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#7
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Senior Member
Join Date: Jan 2013
Location: Bassett, Va
Posts: 322
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Quote:
Originally Posted by 5picker
Yep, those inexpensive plastic valves are not worth much for reliability.
A quality brass one will last forever.
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x2
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BTCM(SW) Ret USN
2013 Sanibel 3500
2013 Ram Truck 3500 Laramie Longhorn Dually
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09-27-2017, 04:01 PM
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#8
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Senior Member
Join Date: Nov 2013
Location: Kirtland, OH
Posts: 328
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That's funny. It was the brass ones that I had the most trouble with. The idea of venting any liquid into a camper is insane. At least the vent should also be piped outside.
__________________
William & Sara
2012 Silverado 2500 HD DA
2014 Cedar Creek 38CK
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09-27-2017, 05:41 PM
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#9
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Senior Member
Join Date: Oct 2015
Location: Hoffman Estates Il.
Posts: 239
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After dealing with leaks from the get go, I removed it entirely and use back flow valves on both ends of the grey hose that I connect from the city water to the back flush connection on our camper.
No more problems with leaks!
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09-27-2017, 10:21 PM
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#10
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Senior Member
Join Date: Aug 2016
Location: Surrey BC
Posts: 399
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I've got one of these and it's awesome. You can see the results and you can control the water supply.
https://www.walmart.com/ip/Camco-RV-...sh-Pro/7964401
__________________
2011 Nissan Xterra V6
2016 Rockwood MiniLite 2306
Nights Camped 2016 [24]
Nights Camped 2017 [63]
Nights Camped 2018 [27]
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09-28-2017, 07:02 AM
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#11
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Member
Join Date: Sep 2017
Posts: 53
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Quote:
Originally Posted by Jay2504
Today, we pulled up to the dump station. After emptying the black tank I turned on the flush. In about a minute I had water flowing out the back of the trailer. I shut off the flush and looked, sure enough water had come out of the vacuum breaker installed in the flush line! I had the DW watch while I turned on the flush again, no leak. I figure that the valve stuck then came unstuck and started working again. Should I replace th valve? Just watch it next time? By pass it? I am interested in all opinions. Thanks. Jay
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Was this the built in flush system that you attach the water hose to that is built in to the camper near the fresh water fill
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09-28-2017, 07:08 AM
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#12
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Senior Member
Join Date: May 2017
Posts: 5,712
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Quote:
Originally Posted by 5picker
Yep, those inexpensive plastic valves are not worth much for reliability.
A quality brass one will last forever.
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Last trailer was 10 years old and never had to replace a valve.
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09-28-2017, 07:11 AM
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#13
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Senior Member
Join Date: May 2017
Posts: 5,712
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Quote:
Originally Posted by Nurek
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and it's been proven by videos that you're washing out about six inches inside that fitting...and that's about it.
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09-28-2017, 07:18 AM
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#14
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Senior Member
Join Date: Aug 2016
Posts: 621
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Quote:
Originally Posted by Jay2504
Today, we pulled up to the dump station. After emptying the black tank I turned on the flush. In about a minute I had water flowing out the back of the trailer. I shut off the flush and looked, sure enough water had come out of the vacuum breaker installed in the flush line! I had the DW watch while I turned on the flush again, no leak. I figure that the valve stuck then came unstuck and started working again. Should I replace th valve? Just watch it next time? By pass it? I am interested in all opinions. Thanks. Jay
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One of the tricks I had to learn (RTFM...) about my B&B model 571 vacuum breaker is that you don't want to ease the water on when you flush, you want to turn it on suddenly to force the popup valve in the breaker to seat.
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09-28-2017, 07:32 AM
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#15
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Insert witty title here
Join Date: Apr 2016
Location: About 30 miles west of Beantown.
Posts: 4,023
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I've given up on the stock black tank rinse. I now just stick a rinsing wand down the toilet.
__________________
2021 Transcend Xplor 247BH
Husky WDH with Sway Control
2021 Chevy Silverado 2500HD LT 6.6L V8 Duramax
Forever in my memory. Forever in my heart.
Laurie J. Wood 3/22/67 - 8/23/19
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09-28-2017, 07:03 PM
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#16
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Senior Member
Join Date: Apr 2016
Posts: 1,011
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Yes it is the factory black tank flush. On my unit (2504s) the fitting is on the back of the unit. As we speak CW is contacting Forest River to see if I am covered. I am told that it might be a problem because it became unstuck on its own. We will see what happens. Jay.
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09-28-2017, 07:13 PM
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#17
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Member
Join Date: Sep 2017
Posts: 53
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Good luck man
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09-29-2017, 09:45 PM
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#18
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Senior Member
Join Date: Aug 2016
Location: Surrey BC
Posts: 399
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Quote:
Originally Posted by TheWolfPaq82
and it's been proven by videos that you're washing out about six inches inside that fitting...and that's about it.
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Oh really? Please show me all the videos.
If you are referring to "The Fit RV" video with the green water, he has set up the piping that creates a fail on all his demos. His set ups are not replicated on most units IMO. It is not set up that way on my piping.
His videos have the comments turned off so us smart people can't tell him that he has created fails. Now what does that tell you?
I place my the gate valve below the injection valve and water gets in the tank no problem.
Drop by on Thanksgiving and I'll show you how good it works.
__________________
2011 Nissan Xterra V6
2016 Rockwood MiniLite 2306
Nights Camped 2016 [24]
Nights Camped 2017 [63]
Nights Camped 2018 [27]
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09-29-2017, 11:08 PM
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#19
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Just as confused as you
Join Date: Aug 2013
Location: south central Wisconsin
Posts: 5,108
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They don't work very well unless your dump valve is straight into the tank. My dump has a 45 up then a 45 into the tank. It's basically the same as just filling the tank through the dump valve. There isn't any force going into the tank.
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Richard & Jill
2014 Flagstaff 832IKBS Classic Super Lite
2018 Silverado 1500 Crew Cab Z71 4WD All Star Edition
Camping since 1989, Seasonal since 2000.
Car Shredder Op/Tech, Scrap Metal Recycling - retired
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09-29-2017, 11:27 PM
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#20
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Senior Member
Join Date: Aug 2017
Posts: 292
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Has anyone tried replacing the stock tank flush with a Tornado tank flush?
__________________
2017 Rockwood Windjammer 3006WK
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