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03-10-2019, 02:25 PM
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#1
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New Member
Join Date: Oct 2018
Location: Streator
Posts: 4
Illinois
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flushing black water tank
I have a Dutchmen Voltage 3655. I have a side door that has all the escape valves. there is ability to hook up hose to to flush black tank. I hooked up but it will not let water in. there is a statement that says escape valve must be open. i have open black water tank valve. The owners manual isn't telling me enough so I don't know if Im doing it right or not. Does anyone have any suggestions.
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03-10-2019, 03:12 PM
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#2
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Senior Member
Join Date: Dec 2012
Location: Tahlequah
Posts: 3,079
Oklahoma
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Quote:
Originally Posted by McG's Mobile Manor
I have a Dutchmen Voltage 3655. I have a side door that has all the escape valves. there is ability to hook up hose to to flush black tank. I hooked up but it will not let water in. there is a statement that says escape valve must be open. i have open black water tank valve. The owners manual isn't telling me enough so I don't know if Im doing it right or not. Does anyone have any suggestions.
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The flush valve may be installed backwards thereby not allowing the water to enter the tank.
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2013 Voltage 3800, 2012 Chevy 3500 HD
2010 Yamaha V Star 950
2009 Yamaha Raider
Volunteering with Habitat for Humanity Caravanners
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03-15-2019, 08:34 AM
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#3
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Senior Member
Join Date: Aug 2013
Location: Memphis
Posts: 1,616
Michigan
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I think he may be referring to the backflow preventer when he says flush valve being installed backwards
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2019 Ram 3500 Limited w/ Max Tow pkg
2005 Cardinal 33LX
2014-3950, Full Paint, 17.5" tires, 370W solar, 3100W Magnum inverter w/ AGS, 7500w diesel generator, Micro-Air Easy Start 364 (x3) SOLD!
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03-15-2019, 07:07 PM
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#4
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Senior Member
Join Date: Sep 2018
Location: prophetstown
Posts: 376
Illinois
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Quote:
Originally Posted by donzinger
I think he may be referring to the backflow preventer when he says flush valve being installed backwards
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How do you know if its backwards,, I have a somewhat similar problem
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03-15-2019, 07:16 PM
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#5
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Senior Member
Join Date: Aug 2013
Location: Memphis
Posts: 1,616
Michigan
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Quote:
Originally Posted by Local150
How do you know if its backwards,, I have a somewhat similar problem
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Water not going into tanks is first clue to me. Either backwards not allowing flow or a bad one
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2019 Ram 3500 Limited w/ Max Tow pkg
2005 Cardinal 33LX
2014-3950, Full Paint, 17.5" tires, 370W solar, 3100W Magnum inverter w/ AGS, 7500w diesel generator, Micro-Air Easy Start 364 (x3) SOLD!
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03-15-2019, 07:41 PM
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#6
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Senior Member
Join Date: Jun 2016
Location: Capron
Posts: 413
Illinois
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Right, backflow preventer protects the water supply in case it shuts off and starts to drain so that no black tank goo is drawn in to contaminate it. When the manual says to open a valve, that is to prevent tank over pressure, though the tanks SHOULD be vented to atmosphere via a roof vent, but not 100% sure the black tank is. You can start the flush, then open the drain, and close it a few times, while it is flushing, but you don't want to leave it closed more than a minute or so, otherwise it could damage the toilet to tank seal.
IOW, water should flow through regardless if the drain is open or closed.
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03-24-2019, 01:16 AM
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#7
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Member
Join Date: Dec 2013
Location: Mansura
Posts: 33
Louisiana
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Black Water Tank Flush
I have a similar problem and ended up putting the hose down the toilet to flush the tank. I have also heard, though not yet tried, to empty the tank, then fill 1/4 full with fresh water and dump several bags of ice cubes in through the toilet just before starting out on the road. The bouncing ice cubes will dislodge any goo without causing damage, then melt so you can just empty the tank again.
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"TowTow" 2013 Rubicon 2100
"EmaGene" 2002 GMC 2500 HD
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"Cherise" 2001 Harley Sportster 1200 C
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03-24-2019, 10:14 AM
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#8
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Senior Member
Join Date: Jan 2015
Location: Roselle
Posts: 1,292
Illinois
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Ice trick works marginally at best. You Tube video shows a guy that built a plexi tank and put it in the bed of his pick up. Put in simulated waste, water in cubes. Drove around for a time. Result did little or nothing to dislodge waste. Hose or wand yields better results. Just my opinion.
Rusty
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2015 Black F-350 Platinum Diesel Dually Crew Cab
2019 Riverstone Legacy 38MB (Full Paint/All Options)
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03-24-2019, 12:00 PM
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#9
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Senior Member
Join Date: Jun 2017
Location: Central
Posts: 104
Massachusetts
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Quote:
Originally Posted by lcv800
Ice trick works marginally at best. You Tube video shows a guy that built a plexi tank and put it in the bed of his pick up. Put in simulated waste, water in cubes. Drove around for a time. Result did little or nothing to dislodge waste. Hose or wand yields better results. Just my opinion.
Rusty
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I use the wand every few trips ..
and I use the small chemical bags if I am going to travel with a partial tank so it dissolves as I travel
..end of season I use the wand before winterizing
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03-24-2019, 01:04 PM
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#11
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Senior Member
Join Date: Sep 2018
Location: prophetstown
Posts: 376
Illinois
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I have tried the ice thing,, it did nothing for me.
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03-27-2019, 12:20 AM
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#12
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Senior Member
Join Date: Jul 2014
Location: Sparta
Posts: 1,726
Tennessee
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Metamucil will do wonders for keeping your black tank clean.
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2014 Aerolite 213 RBSL
2016 Chevrolet Colorado
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03-27-2019, 03:13 AM
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#13
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Senior Member
Join Date: Sep 2018
Location: prophetstown
Posts: 376
Illinois
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Quote:
Originally Posted by wildwest450
Metamucil will do wonders for keeping your black tank clean.
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Now that's funny
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