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Old 09-06-2018, 08:13 AM   #21
martyperu
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Well to add insult to injury the sink water in half bath drains into black tank also. I am sure the design is for what ever is easiest and cheapest to do.
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Old 09-06-2018, 09:06 AM   #22
Kruskop's
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Thumbs up Washer drains into black tank 3931fb

Okay, good to know the entire half bath goes into the black as well as the washer. That means the kitchen sink is on its own gray. My husband said too much work to replumb so will have to live with it and be aware.
Love the floorplan otherwise!
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Old 09-06-2018, 07:37 PM   #23
martyperu
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We really enjoy the floorplan also. Have to look at the plumbing as the glass is half full vs half empty. Every wash day the black tank gets a good soapy rinse.
When using the washing machine I leave the black tank open ( we are full hookup) and close when not using the washing machine.
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Old 11-12-2018, 08:03 AM   #24
FrankandSue
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Same here. Half bath drains into black tank as well as the washer and dryer. Glad I found it before I had a massive issue.
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Old 11-12-2018, 08:24 AM   #25
beeje
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A pervious unit had the bath sink drain to the black tank. My current units washer drains into the bath gray tank. We don't have a washer so no issue there.

I would be VERY careful with one that drained into the black tank. That sounds like a recipe for disaster some day. I can picture it now, washer is draining while a volcano of poo is gushing from the toilet running down the steps and out the entry door.

If it were me I think I would find a way to redirect the washer line directly to the main drain pipe and not into any tanks. With the inaccuracy of the level gauges I would not trust it draining into any tank.
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Old 11-12-2018, 08:54 AM   #26
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It seems like a lot of MFG are connecting them into the black tanks, a friend just bought SOB Toy Hauler and he found out the hard way as it backed up into his 1/2 bath in the garage all over his floor. I think they should always go in the grey tank or they should put a label next to the hookups for the machines stating where it is connected to and make sure your tanks are empty before running them.

Garage was easier to clean then it spilling all over say the main bedroom up front, that would be a MESS
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Old 11-12-2018, 09:03 AM   #27
1retired06
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two bathrooms in our 3910, washer drains to gray.
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Old 11-12-2018, 01:11 PM   #28
CaptnJohn
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Originally Posted by Wicked1 View Post
It seems like a lot of MFG are connecting them into the black tanks, a friend just bought SOB Toy Hauler and he found out the hard way as it backed up into his 1/2 bath in the garage all over his floor. I think they should always go in the grey tank or they should put a label next to the hookups for the machines stating where it is connected to and make sure your tanks are empty before running them.

Garage was easier to clean then it spilling all over say the main bedroom up front, that would be a MESS
Mine goes into the bath grey tank ~ thankfully. I think the guy doing the plumbing has no clue and just connects to the closest pipe next to where he is sitting.
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Old 11-12-2018, 05:49 PM   #29
beeje
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Quote:
Originally Posted by Wicked1 View Post
It seems like a lot of MFG are connecting them into the black tanks, a friend just bought SOB Toy Hauler and he found out the hard way as it backed up into his 1/2 bath in the garage all over his floor. I think they should always go in the grey tank or they should put a label next to the hookups for the machines stating where it is connected to and make sure your tanks are empty before running them.

Garage was easier to clean then it spilling all over say the main bedroom up front, that would be a MESS
That's a great idea, having a label/warning stating where the washer drains to. Would cost them pennies per unit to do that, but not going to happen.
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Old 11-12-2018, 06:43 PM   #30
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That's a great idea, having a label/warning stating where the washer drains to. Would cost them pennies per unit to do that, but not going to happen.
Some have said they had a label warning that the washer drained directly to the sewer outlet. But don’t remember anyone saying they had a label saying it drained into a grey or black tank.
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Old 11-13-2018, 01:19 PM   #31
jeffba
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to paraphrase the manual with a fun spin "We will plumb the washer drain line depending on our mood" Seriously though. It says the washer may be plumbed to a gray or black tank or directly to the outlet depending on the floor plan.

When I got ours home the first time I traced the drain to verify which tank it drained into. There are some surprises I try to avoid.
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Old 11-13-2018, 02:31 PM   #32
richfaa
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we have never trusted the tanks for proper labeling or where the washer drains. On both our Montana we put a few gallons of water in each tank along with different colors of food dye. We then pulled each tan individually and noted what color water came out.. Now we knew what tank did what and what pull handle belonged to what tank.
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