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06-23-2019, 10:52 AM
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#1
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Junior Member
Join Date: Jun 2019
Posts: 2
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Black Water Drain will not open
Black water tank filled, tried to drain pulling handle. Used forceful pull, handle pulled out did not drain. Is there a manual pull on valve. Want to drain and replace valve.
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06-23-2019, 11:51 AM
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#2
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Senior Member
Join Date: Oct 2010
Location: Northern California
Posts: 137
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What make and model trailer do you have? Are you from North Dakota?
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__________________
Walt and Judy
2019 Mobile Suites 36RS3 #396674
2022 GMC Sierra Denali 3500 DRW 4WD
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06-23-2019, 12:18 PM
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#3
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Junior Member
Join Date: Jun 2019
Posts: 2
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DRV Mobile Suites 36RS3. I live in Florida
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06-23-2019, 02:02 PM
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#4
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Senior Member
Join Date: Oct 2010
Location: Northern California
Posts: 137
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There is no manual pull. Sounds like the inside cable broke. Time to replace the valve and cable assembly. Not a fun job.
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Walt and Judy
2019 Mobile Suites 36RS3 #396674
2022 GMC Sierra Denali 3500 DRW 4WD
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06-23-2019, 03:05 PM
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#5
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Site Team
Join Date: Sep 2005
Location: Where we park it
Posts: 2,838
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Depending on the year, access can be just hard to plain difficult. Open the sliding door in basement--the one on the off-door side. Should be a white water filter hanging from frame--directly behind that filter about 2 ft rearward you can see the 3" drain line out of the black tank and the valve location. If you are agile/long arms, you can possibly reach behind the valve to where the cable enters and maybe manually get it to open some. Outside of getting this valve open, since the tank is full, not going to be a fun/clean job.
Have you tried grabbing the cable end with vice-grip pliers and pulling on it again?
__________________
2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired
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06-24-2019, 10:59 PM
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#6
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Senior Member
Join Date: Dec 2018
Location: Desert Hot Springs Ca.
Posts: 364
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One thing I found on my hard to open valves was to use just hard steady pull. Don't just yank on it. Try the vice-grip pliers like wingnut60 posted.
If you do get it open & drained you can add a pull valve on the end of your drain line. They are about $20.00 at CW. Just don't leave the gray open if you do that. Your black will back up into it which you don't want.
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Mike & Trish Romans 10:9
2011 Mobile Suites 36RSSB3 #5556
2017 F-350 CC 6.7 diesel dually, Banks Derringer tuner with super gauge
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07-01-2019, 05:44 PM
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#7
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Member
Join Date: Jan 2016
Location: Maine
Posts: 55
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Quote:
Originally Posted by wingnut60
Depending on the year, access can be just hard to plain difficult. Open the sliding door in basement--the one on the off-door side. Should be a white water filter hanging from frame--directly behind that filter about 2 ft rearward you can see the 3" drain line out of the black tank and the valve location. If you are agile/long arms, you can possibly reach behind the valve to where the cable enters and maybe manually get it to open some. Outside of getting this valve open, since the tank is full, not going to be a fun/clean job.
Have you tried grabbing the cable end with vice-grip pliers and pulling on it again?
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If you can see it through the door, you could just remove the back wall from the compartment and have plenty of room to access it.
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Elliott, Vicky, and Sadie, our GSD
2014 Redwood36RE Titan Disc brakes, 17.5 " Sailun Tires
2013 RAM dually, CTD, Aisin Tranny, CC, LB 4x4
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07-02-2019, 02:21 PM
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#8
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Site Team
Join Date: Sep 2005
Location: Where we park it
Posts: 2,838
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Not sure that applies to a DRV? Probably need a little more detail...
__________________
2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired
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07-02-2019, 02:46 PM
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#9
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Member
Join Date: Jan 2016
Location: Maine
Posts: 55
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Can you remove the panel the sliding door is in? I didn't realize DRVs we so different than others.
__________________
Elliott, Vicky, and Sadie, our GSD
2014 Redwood36RE Titan Disc brakes, 17.5 " Sailun Tires
2013 RAM dually, CTD, Aisin Tranny, CC, LB 4x4
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07-03-2019, 12:45 AM
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#10
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Site Team
Join Date: Sep 2005
Location: Where we park it
Posts: 2,838
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On a DRV, the basement has 2 sliding doors providing access to the innards--furnace/ducts/transfer switch/holding tanks, etc. Not necessary to take the doors out. But as I said earlier, the 3" tank valve is straight behind the water filter on almost every model I have seen. Moving the filter out and some water lines will get access to the valve, but it isn't easy to replace--doable, but not easy. The black tank valve is a 3" model, and the cable is about 4ft long--the 6' model is probably too long. These valves have a history of the cables binding and breaking.
__________________
__________________
2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired
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