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Old 05-20-2018, 07:04 PM   #1
martyperu
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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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Old 05-20-2018, 07:19 PM   #2
PNW Fireguy
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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.
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Old 05-20-2018, 08:06 PM   #3
carl n susan
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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).
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Old 05-20-2018, 08:45 PM   #4
BB_TX
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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.
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Old 05-20-2018, 10:08 PM   #5
GeologyTek
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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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Old 05-20-2018, 10:13 PM   #6
packnrat
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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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Old 05-20-2018, 10:59 PM   #7
martyperu
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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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Old 05-20-2018, 11:06 PM   #8
PNW Fireguy
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Quote:
Originally Posted by carl n susan View Post
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).



Learned something new, thanks Butch.
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Old 05-21-2018, 03:23 AM   #9
GeologyTek
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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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Old 05-21-2018, 02:34 PM   #10
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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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Old 05-21-2018, 06:14 PM   #11
richfaa
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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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Old 05-21-2018, 06:27 PM   #12
mhs4771
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Our '10 2955 drained directly into the outside drain, thus no washing clothes when not on a Full Hookup Site.
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Old 05-21-2018, 06:47 PM   #13
CaptnJohn
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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.
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Old 05-21-2018, 11:42 PM   #14
twindman
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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.
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Old 05-22-2018, 12:13 AM   #15
Lenny K
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Quote:
Originally Posted by mhs4771 View Post
Our '10 2955 drained directly into the outside drain, thus no washing clothes when not on a Full Hookup Site.
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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Old 05-22-2018, 09:31 AM   #16
jeffba
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Originally Posted by Lenny K View Post
Just drain it into a Blue boy when dry camping. Ours is 30 gallons so no problem in handling a load of wash.
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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Old 05-22-2018, 02:18 PM   #17
Texan
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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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Old 05-22-2018, 03:08 PM   #18
richfaa
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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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Old 05-30-2018, 05:16 PM   #19
Mark7
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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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