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10-19-2014, 03:55 PM
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#1
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Site Team
Join Date: Mar 2009
Location: Fraser Valley BC Canada
Posts: 7,015
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Black Tank Flush - Do We Really Need This?
When talking about modern achievements and inventions, The Black Tank Flushing system surely has to rank right up there with sliced bread, electric cars, and "smart" phones.
A while back, the RV gurus met at one of their annual Think Tank seminars and decided that we should all have one of these systems in our RVs. It would, they deemed, make our RVing life simpler and easier. This new system would keep our black tanks clean and sweet smelling - the dream of every RVer. Just connect a hose, turn on the water and Presto - a Black Tank to be proud of.
So the manufacturers assembled all the parts - a few feet of plastic pipe, a 49 cent plastic vacuum breaker check valve and another cheap spinning gizmo, affectionately known as "No Fuss Flush", put them all together and the infamous Black Tank Flush was born. No more build up of crud in the tank. No more smell. No more "FULL" black tank gauge readings. Just a sparkling clean tank. Right?
Fast forward a few years and what do we have? Check valves that have blown apart causing your bathroom to fill up with water. Black tank gauges that still read "FULL". Foul-smelling odors emanating from the toilet. If the vacuum breaker should break, where is the darn thing? Buried behind some wall or panel? Hidden from view under your sink?
Not that long ago when no one ever heard of or thought about Black Tank Flushing "technology", RVers got along quite nicely without this system. Empty at the right time and keep lots of water in the tank were all anyone had to do. No downpours of water spilling out of your bathroom and gauges that still read FULL.
So here we are. Stuck with this "No-Fuss-Flush". Do we really need this? Or want it?
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2008 Cougar 5th Wheel 27RKS
2005 2500 GMC Duramax
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10-19-2014, 04:00 PM
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#2
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,345
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My '97 Jayco didn't have it. I made it 13 1/2 yrs without one. Current rig has one, and I think it's DA BOMB!
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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10-19-2014, 04:03 PM
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#3
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Senior Member
Join Date: Aug 2012
Location: Waco, Tx
Posts: 5,457
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The new Cougar has one but I doubt I will ever use it and might even put a cut-off in it or just plug it like I plan to do with the washer connections.
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10-19-2014, 04:32 PM
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#4
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Senior Member
Join Date: May 2010
Location: Rochester, NY
Posts: 1,605
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I love mine and use it all the time. To flush well it does take time which I don't always have when the poop line is long. I make a point to flush when I can and I never have poo odors in the rig and don't need chemicals, other than a little detergent.
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10-19-2014, 04:40 PM
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#5
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Senior Member
Join Date: Jun 2013
Location: Texas
Posts: 265
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Previous trailer didn't have one, current one does. I like having it and I use it more often than not; especially on the final dump before our trailer is going to sit for several weeks without being used.
I view the issue of the cheap parts breaking as yet another good idea made iffy by poor implementation.
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10-19-2014, 04:43 PM
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#6
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Senior Member
Join Date: Apr 2011
Location: Arrey,
Posts: 2,368
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Festus2, Howdy;
More obtuse thinking would have them creating these items,
No-Fuss-Flush, hidden water pumps, heaters that don't work
and the 'Idiot light that communicates the fault code pointed at
a 180* direction from which it may be viewed are put in place
so that forums such as this will have a never ending source for
us to vent our spleens and shake a fist at and ...
Kick back, and enjoy another adult beverage and read the comedy.
hankaye
__________________
Striving for a less complicated life since 1949 ...
Home: 2008 Cougar 278 RKS
T.V.: 2004 F-250 4X4, Level III BulletProofed , Detroit Tru-Track Differential (915A550)
Dog: 2006 Border Collie (Rascal) aka Maximum fur dispersal unit. (08/04/2006 - 12/16/2017) RIP.
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10-19-2014, 07:11 PM
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#7
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Senior Member
Join Date: Feb 2013
Location: MA
Posts: 3,153
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To date I have not had any issues with it. I use it once or twice a year. Prior to having one, never had any issues either so it is what it is.
__________________
2013 Premier 31BHPR
2014 F350 6.2L
Soon to be just DW and I
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10-19-2014, 09:38 PM
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#8
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Senior Member
Join Date: Nov 2012
Location: Fruitland
Posts: 3,357
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This is the first of 9 rvs I have had that have it. Because it is new to me I went on camping trips about a year before using it. I just forgot about it. Last 3 camp trips I used it each time while dumping at the park. So far black tank gauge works right. At this time I am on the fence regarding if it is good to use or really helps anything. I think if you flush the tank when full or near so containing a lot of liquid you should not need it.
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2013 24RKSWE (27ft TT) Cougar 1/2 ton series SOLD 10-2021
2013 Ford F350 4x4 CC 6.7 engine, 8 ft bed, 3.55 rear end, lariat package
Retired from Oregon State Police in 2011 than worked another 9.5 years as a small town traffic cop:
As of 05-2020, I am all done with 39 years total police work. No more uniforms for me.
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10-19-2014, 10:17 PM
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#9
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Senior Member
Join Date: Nov 2012
Location: Okla
Posts: 363
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Having camped for years in family's rig that didn't have tank flush system and now having one, I gotta say that I prefer the flush system. Without it, I had to sit and hold down the foot pedal for long periods of time to fill and flush the black tank in order to rinse it. Now I can close the valve for 2 or 3 minutes and run the flush system. Repeat a few times and most of the leftover bits are gone. The other option is the wand that you stick down the toilet and then have to drag through the trailer without dripping sewer along the way and finding a place to store it, which is an option I'm not real keen on, to put it mildly.
Yeah, it definitely needs improvements (brass hardware, for example), it has to be installed correctly (sometimes they get installed backwards at the factory which results in not working or worst case scenario of them rupturing and flooding the place), and gotta be sure to run anti-freeze through it come winter, but...
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2012 Keystone Vantage 32FLS
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10-20-2014, 01:12 AM
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#10
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Senior Member
Join Date: Jul 2014
Location: Nevada
Posts: 2,695
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What I like about it:
After I close the drain valve for three minutes, letting the black tank fill somewhat (with a pressure regulator on the hose) it get a few more discolored bits out of the tank. Repeating the process will result in clear water draining. This has to be a good thing.
What I don't like about it:
Its plastic, and prone to break, but I found a brass one that will be installed before my next trip over Christmas. Probably still use the pressure regulator for the sprayer in the tank...just in case.
__________________
Desert185 🇺🇸 (Retired Chemtrail vendor)
-Ram 2500 QC, LB, 4x4, Cummins HO/exhaust brake, 6-speed stick.
-Andersen Ultimate 24K 5er Hitch.
-2014 Cougar 326SRX, Maxxis tires w/TPMS, wet bolts, two 6v batts.
-Four Wheel 8' Popup Camper.
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10-20-2014, 05:24 PM
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#11
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Member
Join Date: Jan 2014
Location: Ohio
Posts: 58
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I helped a friend winterized his camper this weekend and he doesn't have one. My tank had no odor at all and his did. He takes care of his camper very well and has some fancy way of an add on flush, but it doesn't compare to mine that is built in. I would never buy a camper without one..
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10-20-2014, 05:56 PM
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#12
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Site Team
Join Date: Mar 2009
Location: Fraser Valley BC Canada
Posts: 7,015
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[QUOTE=Signguy71;148732]I helped a friend winterized his camper this weekend and he doesn't have one. My tank had no odor at all and his did. He takes care of his camper very well and has some fancy way of an add on flush, but it doesn't compare to mine that is built in. I would never buy a camper without one..[/QUOTE]
Maybe we don't have any choice. If RV manufacturers are going to have a built-in black tank flush system as one of their "standard features", why not use components that don't quickly self-destruct and cause many owners grief and frustration in having to deal with flooded bathrooms or other sections of their RV?
What is the point of having such a system that requires the owner to either eliminate it all together, to replace cheap, unreliable parts (anti-siphon valve) with something that will not easily break, and to install it in such a way that it is reasonably accessible?
While it may work well for others, I won't use it because I don't trust it. If I took the time and effort to install a brass valve, I would probably use it. Now, if I can only remember where that darn valve is ...... behind the stereo cabinet somewhere I think. Behind the stereo????? Of course - aren't they all there?
__________________
2008 Cougar 5th Wheel 27RKS
2005 2500 GMC Duramax
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10-20-2014, 06:10 PM
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#13
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,996
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Hey Festus2, If I ever remember to pick up a brass valve for my "no fuss flush" system, I'll get one for yours too. Until then, like you, I'd rather step on the toilet flush valve to fill the tank rather than risk flooding the bathroom with a "less than reliable standard build" convenience system. And mine is easily located under the bathroom sink, no cutting out the walls for me <sigh>
It seems using the system is almost as stressful as watching the LED's on a new awning burn out one at a time..... ping.......ping.....ping......
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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10-20-2014, 07:15 PM
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#14
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Member
Join Date: Feb 2013
Location: Oregon
Posts: 73
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I just replaced mine with a brass valve, cost me $15. Took me about 5 minutes to replace. However, it was in a very accepable area, under the bathroom sink.
What I will say is that I would never have know that they could be a problem or even what the valve was, or where it was located, or how to upgrade it, without the very informative senior members who so generously contribute to this forum. Thank you.
John
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John & Arlene
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10-20-2014, 07:23 PM
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#15
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Senior Member
Join Date: Jun 2012
Location: Ontario,Califorina
Posts: 415
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You have two option, buy or make a wand or put a brass back flow preventer in also use a pressure regulator for back flow preventer. My plastic back flow preventer flooded out my rv. Bought brass. And also made a wand 1/4 ss tubing x 40 " with 1/4 ss tubing tee and other end hose bib.
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Randy69
2010 361lev
f350 larriet 4x4
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10-21-2014, 06:20 AM
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#16
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Senior Member
Join Date: Apr 2011
Location: Arrey,
Posts: 2,368
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Festus2, Howdy;
I can say with a certainty, that after 182 (approx.), uses,
the fix that I employed has worked without a drop being dripped
and the system works fine for me. I flush my tank when I dump
generally on Saturday afternoons.
hankaye
__________________
Striving for a less complicated life since 1949 ...
Home: 2008 Cougar 278 RKS
T.V.: 2004 F-250 4X4, Level III BulletProofed , Detroit Tru-Track Differential (915A550)
Dog: 2006 Border Collie (Rascal) aka Maximum fur dispersal unit. (08/04/2006 - 12/16/2017) RIP.
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10-21-2014, 06:53 AM
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#17
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Member
Join Date: Feb 2013
Location: Gresham, Oregon
Posts: 62
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Black Tank Flush
Ok, we had one of those spinners in the black tank that was awesome. I say was cause, it has stopped working. Can't figure out where it is let alone how to fix it. We have a 2011 298RE. So, bought one of those fancy little wands that you shove down toilet bowl into the tank. Gauges don't work so not real sure how clean I get it. I just keep doing it till water runs clear then add the good smelling stuff to keep it smelling as fresh as a Daisy! Really liked the built in thingy till it stopped. Any suggestions on how to fix it? Does the whole tank have to come off? If so, that's not going to happen.
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10-21-2014, 07:04 PM
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#18
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Senior Member
Join Date: Apr 2013
Location: Green Valley, AZ
Posts: 782
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I've been using various kinds of RVs for the past 40 years. Never had a flush system until the last two. It does make the cleaning process a little easier but not sure there is any need for it. In the past I always thought the black tank was a black tank. No need to clean--it was a port-a-poti. Never cleaned those older RVs black tank and never had a problem. I guess, all and all, I think it is mostly a marking ploy and not something most people have to worry about.
__________________
Earl
2007 33.5' Arctic Fox Fifth Wheel used for full-timing for several years--now sold
2011 Hideout 23RKSWE that we now use for poking around local parks
2007 Chevy 3/4 ton diesel with Prodigy Brake Control
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10-21-2014, 07:34 PM
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#19
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Junior Member
Join Date: Sep 2014
Location: Abilene TX
Posts: 26
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I look at the black tank flusher (this trailer is the first one I've owned that had it) as a handy item but not a necessary one.
It's puzzling to me how many users on this thread seem to be using it. I only use it when the black tank valve is open which means that there's no chance of any flooding problems. Doesn't seem like a good idea to use it with a closed valve which would allow pressure to build up in the tank. Of course If I had an assistant to keep the toilet valve open to prevent pressure buildup that would be OK. Seems pointless though since it does a good job with the black water valve open. JMHO
If I want to put water in the tank I always use the toilet to do so.
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10-21-2014, 10:38 PM
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#20
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Senior Member
Join Date: Nov 2012
Location: Okla
Posts: 363
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Quote:
Originally Posted by Tom
I look at the black tank flusher (this trailer is the first one I've owned that had it) as a handy item but not a necessary one.
It's puzzling to me how many users on this thread seem to be using it. I only use it when the black tank valve is open which means that there's no chance of any flooding problems. Doesn't seem like a good idea to use it with a closed valve which would allow pressure to build up in the tank. Of course If I had an assistant to keep the toilet valve open to prevent pressure buildup that would be OK. Seems pointless though since it does a good job with the black water valve open. JMHO
If I want to put water in the tank I always use the toilet to do so.
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If the tank is properly vented (vent properly installed, etc), then there shouldn't be any pressure buildup. Of course, the keyword is "if".
__________________
2012 Keystone Vantage 32FLS
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