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05-20-2018, 07:04 PM
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#1
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Seasoned Camper
Join Date: Mar 2013
Location: Neville
Posts: 85
M.O.C. #13316
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Washing machine drains into black tank
First season with our 2018 3920FB. Had dealer install Splendide washer/dryer combo.
Took a awhile to figure out where water was going.
Just about found out the bad way but it is draining into blank tank for the half bath.
Guess we will just have to live with it but wish it was either straight to outlet or at least to grey tank.
Anyone else have washing machine draining into black tank?
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05-20-2018, 07:19 PM
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#2
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Montana Master
Join Date: Nov 2015
Location: Arlington
Posts: 1,522
M.O.C. #18081
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Curious how you came to that conclusion. Not where it is supposed to be plumbed to....mistakes do happen but haven't heard of that one.
__________________
SOB
2015 Volvo VNL780 D13, iShift, 32k ET air hitch, Idle Free LiFePO4 APU
16.8KWhr LiFePO4, 2.52 kw solar, 10kva Victron split phase
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05-20-2018, 08:06 PM
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#3
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,356
M.O.C. #4831
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Montana has a history of plumbing the washer to the black tank. I remember some in 2008 and 2010. You would think they had learned their lesson. But apparently not.
Chase the plumbing to see where the washer line enters the black tank plumbing. You might be able to re-direct it to another tank (best option) or to a new drain output connection (2nd choice).
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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05-20-2018, 08:45 PM
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#4
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,155
M.O.C. #6433
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My washer goes to the grey tank. Seems most have reported it going direct to the sewer outlet. But some have reported it going to the black tank. Maybe due to differences in floorplans? Who knows.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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05-20-2018, 10:08 PM
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#5
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Established Member
Join Date: May 2018
Location: Foley
Posts: 42
M.O.C. #21745
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I have a 3811ms with the Splendide washer & dryer. My rig has 3 waste water tanks.
One for the kitchen sink. One for the shower, bathroom sink, and washer/dryer. And one for the toilet.
They only way I could think that a washer could drain in to a black water tank is if was hooked up to the black tank air vent line that goes through the roof. Is that a possibility on your unit?
Also, does your unit have 2 grey water tanks, one for the kitchen and a separate one for the bathroom? I have been in a 3920FB but I do not know how many tanks they have.
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05-20-2018, 10:13 PM
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#6
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Montana Fan
Join Date: May 2018
Location: san andreas
Posts: 209
M.O.C. #21805
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maybe dump the tank at the time you do a load of dirty clothing?
great way to get double use of said water.
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05-20-2018, 10:59 PM
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#7
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Seasoned Camper
Join Date: Mar 2013
Location: Neville
Posts: 85
M.O.C. #13316
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Our 3920fb has two black and two grey tanks. One black for front bathroom. One black for 1/2 bath which is by washer. This is tank washer drains into.
One grey tank is for front bath one for kitchen.
I am thinking will just work with it. Depending on how full black tank is will open valve at time of washing. Problem is I don't trust tank level gauges.
Thinking positive maybe the washing machine water will give black tank a good flushing.
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05-20-2018, 11:06 PM
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#8
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Montana Master
Join Date: Nov 2015
Location: Arlington
Posts: 1,522
M.O.C. #18081
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Quote:
Originally Posted by carl n susan
Montana has a history of plumbing the washer to the black tank. I remember some in 2008 and 2010. You would think they had learned their lesson. But apparently not.
Chase the plumbing to see where the washer line enters the black tank plumbing. You might be able to re-direct it to another tank (best option) or to a new drain output connection (2nd choice).
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Learned something new, thanks Butch.
__________________
SOB
2015 Volvo VNL780 D13, iShift, 32k ET air hitch, Idle Free LiFePO4 APU
16.8KWhr LiFePO4, 2.52 kw solar, 10kva Victron split phase
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05-21-2018, 03:23 AM
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#9
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Established Member
Join Date: May 2018
Location: Foley
Posts: 42
M.O.C. #21745
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Ok, That sounds a lot better. The 3920fb that I looked at had the washer dryer in the corner of the kitchen. I guess 1/2 bathroom black tank was just easy for them to plumb in to. The Splendide ARWXF129W that I have uses up to 16 gallons of water per cycle. IF-I set it on super wash and extra rinse with a full load. I hope that will give you an idea of how much water is being used.
And.....the 3920fb was my second choice....that hot tub though.... In the words of George Takai: "OOOOOoooooohhhhhh MMMmyyyyyyyy"
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05-21-2018, 02:34 PM
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#10
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Montana Master
Join Date: Mar 2015
Location: Gardnerville
Posts: 1,252
M.O.C. #17163
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Could it be routed to the black tank for families with small children?. You know, poopy pants....or for some of us who cant trust a fart?
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05-21-2018, 06:14 PM
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#11
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Montana Master
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
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They have been doing that on and off for years sometimes it is drained into the gray tank and sometimes the black tank.I never understood why. Both our 06 3400 and this 13 3402 drain directly to the outside drain.
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05-21-2018, 06:27 PM
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#12
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,657
M.O.C. #9969
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Our '10 2955 drained directly into the outside drain, thus no washing clothes when not on a Full Hookup Site.
__________________
Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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05-21-2018, 06:47 PM
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#13
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Montana Master
Join Date: May 2017
Location: South East NC
Posts: 1,768
M.O.C. #19865
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We also have the separate washer/dryer and wifey loves it. Drains into the bathroom gray tank on our 2017 370 br.
__________________
John & Patty
2022 3855 BR
2019 Lariat F350 4X4 Dually
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05-21-2018, 11:42 PM
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#14
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 2,944
M.O.C. #5651
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My bathroom sink drains straight into the black tank. Not sure if intentional, but I followed the pipe from the floor to the tank.
__________________
Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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05-22-2018, 12:13 AM
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#15
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Montana Master
Join Date: Jun 2014
Location: Vancouver Island
Posts: 894
M.O.C. #14417
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Quote:
Originally Posted by mhs4771
Our '10 2955 drained directly into the outside drain, thus no washing clothes when not on a Full Hookup Site.
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Just drain it into a Blue boy when dry camping. Ours is 30 gallons so no problem in handling a load of wash.
__________________
Lenny and Ros
2012 Montana 3400RL,680 Watts Solar,4xT-105 Trojans,GP-ISW2000-12 Inverter,Trimetric 2020, EMSHW50C
2009 Chevy Silverado 3500 LTZ Duramax 4x4 CC Dually, Banks Speed Brake
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05-22-2018, 09:31 AM
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#16
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Montana Master
Join Date: Oct 2017
Location: Bastrop
Posts: 2,892
M.O.C. #20753
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Quote:
Originally Posted by Lenny K
Just drain it into a Blue boy when dry camping. Ours is 30 gallons so no problem in handling a load of wash.
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Not a fan of lugging 250 pounds around for laundry.
Already told DW, must have full hook ups in order to use laundry.
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Mocha, one-eyed toothless, hurricane survivor, Pirate dog
2019 20th Anniversary Edition 3701LK
B&W 20K for Ford OEM Puck
2018 Ford F-350 Lariat CCLB PSD DRW KJ5CQH
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05-22-2018, 02:18 PM
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#17
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Montana Master
Join Date: May 2017
Location: new caney
Posts: 1,050
M.O.C. #19873
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My rv is like Richards and drains straight out . Thought it drained into the gray tank like my previous rv and found out the hard way that it doesn't. If no full hook-up then no option. Either straight to the sewer or no washing.
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05-22-2018, 03:08 PM
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#18
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Montana Master
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
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Will admit that we do not boon dock and we always ask for full hookups when in travel or at any campground.
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05-30-2018, 05:16 PM
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#19
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Montana Fan
Join Date: Sep 2016
Location: Fargo
Posts: 212
M.O.C. #19032
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My 2004 3295RK, the W/D drains into the gray tank. I wish it drained into the black tank, as they are both the same size and our habits put a lot less pressure on the black tank. Plenty of liquid in that tank is helpful as well, so long as the soap doesn't interrupt the activity of the chemical in the tank.
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09-06-2018, 07:00 AM
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#20
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Established Member
Join Date: Sep 2018
Location: Mesa
Posts: 21
M.O.C. #22567
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Washer drains into black tank
This is our 3rd Montana but the new one (3931fb) drains into the 1st black tank next to the half bath. There is a sink right there so not sure why they didn't use the gray. Now we have to check black level before doing wash. This is the only flaw we have found in this design so far. I called Keystone and their comment was it was because washer water should go into black. I disagree. Will look into replumbing.
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