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08-12-2015, 11:04 AM
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#1
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Seasoned Camper
Join Date: Jan 2007
Location: Wichita
Posts: 78
M.O.C. #6712
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Black Water Tank Flush
Any suggestions/recommendations about adding a black water tank flush spray head to my 2006 Montana??
Self-install or a trip to Camping World, or local RV dealer??
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08-12-2015, 11:27 AM
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#2
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Montana Master
Join Date: Oct 2013
Location: Ogden
Posts: 638
M.O.C. #13862
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Mine has one from the factory, and I can see no benefit whatsoever. The sensor lights are still totally unreliable no matter how many times or no matter what method I use (and I've tried 'em all) to flush my black tank and keep it "clean" . I'd save my money for something that will buy you tangible results! Just sayin'....
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08-12-2015, 11:41 AM
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#3
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Montana Master
Join Date: Nov 2013
Location: Willow Spring, NC
Posts: 992
M.O.C. #13909
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My 2014 have the black water flush system, but it does not work nearly as well as filling the toilet completely full then flushing it all at once. doing that 3 times cleans a lot out.
__________________
Jim & Martha Abernathy
2014 Montana 3402RL Level UP, Sailun S637's, TST 507, 500W solar
2014 Ram 3500 Laramie® 4x2 diesel dually crew-cab 3.73 axle, Reese R20
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08-12-2015, 11:52 AM
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#4
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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That and an external black flush valve
__________________
Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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08-12-2015, 12:25 PM
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#5
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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If my rig didn't have one installed I would'nt mess with an in tank sprayer. I'd use something like this: http://www.campingworld.com/shopping...ush-king/20522
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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08-12-2015, 12:37 PM
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#6
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Montana Master
Join Date: Oct 2007
Location: silver creek
Posts: 1,507
M.O.C. #7770
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we have one but I still fill tank 3 times in fall and dump. Think it works better than sprays. I also agree the sensor is useless, hasn't worked in years
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08-14-2015, 07:54 PM
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#7
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Montana Fan
Join Date: Apr 2014
Location: Eureka
Posts: 276
M.O.C. #14208
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I have been using the flush king and it works great. You can use it also to flush out your gray tanks and also the hose.
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08-15-2015, 04:44 AM
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#8
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Montana Master
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,710
M.O.C. #7992
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Been using our black tank flush since 06 and have never had a problem. Love the simplicity of it. I don't think you can ever get the tank full using the flush king and I don't want to drag a hose into the rig to fill the tank from inside or fill the stool several times to fill the tank. Having said that if it wasn't already installed from the factory I would never go through the effort to install one. Jim
__________________
2006 3000RK
2009 Ram 2500
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08-15-2015, 04:50 AM
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#9
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,225
M.O.C. #6433
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I have always been happy with my built in flush. I think it does a good job. After draining the tank, I run the flush for a couple minutes with the drain valve closed, drain again, and repeat 3-4 times. Each time there is additional solids comes out until finally it is mostly clear water with no solids. The thing makes lots of spray noise inside sounding like it is hosing something down. And what comes out seems to validate that.
As far as installing an after market one, I have no idea.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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08-15-2015, 06:00 AM
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#10
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Montana Master
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,710
M.O.C. #7992
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Someone on this forum gave me the idea to calculate a full tank. Time how long it takes to fill a 5 gallon bucket from the hose. Divide the tank capacity by 5 gallons and multiply that by time to fill the bucket. This gives you how long it takes to fill an empty black tank. That's how long you can run the black tank flush with the dump valve closed without overfilling the tank. Using this method I get a pretty clean dump after two rinse fillings. Jim
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2006 3000RK
2009 Ram 2500
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08-17-2015, 04:21 AM
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#11
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Montana Master
Join Date: Feb 2010
Location: Shipman
Posts: 552
M.O.C. #10136
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the tornado black tank flush is easy to install...can do it yourself if you follow directions...I installed them on my SOB 5ers....just takes some time....
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08-17-2015, 08:23 AM
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#12
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Site Team
Join Date: Aug 2007
Location: Omaha
Posts: 6,767
M.O.C. #7560
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I use the OEM tank flush but run it while dumping and then close the gate valve and let the tank flush to fill the tank for about 10 minutes, then I open the valve again and repeat the process about three times. I do have separate gate valve at the end of the dump line and a Flush King attached to that that is removable when traveling down the road. After flushing the black tank the three oor four times, I turn on the Flush King and let it back flow into the black tank for about 10 minutes also. I then turn off the Flush King and let the tank drain. I use the galley tank to flush the line and then the shower/bathroom sink gray tank to totally flush the lines and it's done. Yes, it takes a lot of time but the water flowing out of the black tank is clear when I'm done and it is going into storage or extended non-use. I do keep all of the valves on the tanks close while in use and dump when they get full when the unit is in use.
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08-17-2015, 11:10 AM
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#13
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Montana Master
Join Date: Dec 2004
Location: YUMA
Posts: 861
M.O.C. #2625
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Quote:
quote:Originally posted by Rondo
I use the OEM tank flush but run it while dumping and then close the gate valve and let the tank flush to fill the tank for about 10 minutes, then I open the valve again and repeat the process about three times. I do have separate gate valve at the end of the dump line and a Flush King attached to that that is removable when traveling down the road. After flushing the black tank the three oor four times, I turn on the Flush King and let it back flow into the black tank for about 10 minutes also. I then turn off the Flush King and let the tank drain. I use the galley tank to flush the line and then the shower/bathroom sink gray tank to totally flush the lines and it's done. Yes, it takes a lot of time but the water flowing out of the black tank is clear when I'm done and it is going into storage or extended non-use. I do keep all of the valves on the tanks close while in use and dump when they get full when the unit is in use.
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10 Minutes you are a very brave man
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08-17-2015, 11:30 AM
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#14
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Montana Master
Join Date: Aug 2010
Location: Washington Coast
Posts: 2,688
M.O.C. #10696
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I do the same as Rondo That's about how long I do it going on 4 years now and never had a problem with overfilling it takes longer than that to fill it
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08-22-2015, 03:03 AM
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#15
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Montana Master
Join Date: Jan 2005
Location: Goshen
Posts: 1,058
M.O.C. #2827
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I use the flush king, also. Tried using the tank sprayer and discovered the stupid plastic back flow preventer up under the vanity sink leaked like a siv! One more thing for repair at the facility I use next month.
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08-22-2015, 05:55 AM
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#16
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Montana Master
Join Date: Dec 2005
Location: Eugene
Posts: 1,061
M.O.C. #5091
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My way is similar. Drain the black tank, refill for about 4 minutes and then flush again, repeat about 3 times and then close drain and fill for about 1 1/2 minutes , put chemicals in and done.
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08-22-2015, 01:40 PM
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#17
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Site Team
Join Date: Aug 2007
Location: Omaha
Posts: 6,767
M.O.C. #7560
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Timed it Bill and it actually takes over 20 minutes plus to fill the tank completely. I also do as bigred715 and once flushed to my satisfaction, I let the flush run for another minute or two and shut it down. I then go inside and use the Happy Camper or if I'm on the roll that day I put a couple cups of Cascade Dishwasher soap with Dawn in the black and a single cup of the same in the grays. Several times a year I also add a cup of Calgon liquid to the tanks to create a little slickness to the inside of the tanks and it seems to help keep them cleaner and easier to dump/flush!
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