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Old 07-26-2014, 11:40 PM   #11
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Another way to do the lone grey tank is hook up a garden hose with a valve at the open end to the cap on the tank . Run that hose over to the campground hook up. This way you don't have to crawl under a slide like on my trailer and you only need the one sewer hose plus the garden hose takes up less space. Leave the valve under the trailer open and when the tank needs draining open the valve at the end of the hose.
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Old 07-27-2014, 01:01 AM   #12
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Two gray water tanks

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Originally Posted by Helmsey View Post
This is what I use when I want both hooked up:



I generally only do that if we are going to be there for a week or longer. If just a long weekend I'll use a single hose and go to each drain when dumping.

I use this method as well. I also put valves at distal end of hoses prior to Y connection by CG drain to prevent back flow from 1 hose to the other when draining. 1 gray tank is under slide out and inaccessible so I leave that valve open and control with valve by CG drain .


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Old 07-27-2014, 03:25 AM   #13
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On my 8289WS I combined the two outlets. I procrastinated on doing this a long while, as I was apprehensive about possibly messing something up.

The way that I did it provides a method of disassembling the pipes should you need to replace the seals in the valves.

Combine Dump Outlets

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Old 07-27-2014, 07:26 PM   #14
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Originally Posted by RodeoGeorge View Post
On my 8289WS I combined the two outlets. I procrastinated on doing this a long while, as I was apprehensive about possibly messing something up.

The way that I did it provides a method of disassembling the pipes should you need to replace the seals in the valves.

Combine Dump Outlets

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George, I also have not done this either. I do like you idea using the flange like a union. That was part of my thoughts how do you take it apart if you have to.

Brian
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Old 07-27-2014, 07:33 PM   #15
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I hard plumbed the galley tank into the grey tank my 08 Flagstaff and our present 12 Flagstaff 8528RKWS. One outlet, one hose to dump all 3 tanks.
Connect Galley tank to Front grey water tank
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Old 07-28-2014, 05:30 PM   #16
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That was part of my thoughts how do you take it apart if you have to.

Brian
Just remove the four bolts that hold the two flanges together (with the seal between them) and then any part of the system can be removed/serviced.

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Old 07-28-2014, 06:09 PM   #17
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I too have two grey tanks.The kitchen dump vale I installed the garden hose end cap and bought the sewer flange that has the garden hose inlet.Rigged up a swivel fitting and plug for it.I just hook up the hose and leave the valve open on the 5er.Easy peazy.Use the hose for the black tank flush when I'm ready to dump.
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Old 07-28-2014, 07:50 PM   #18
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I too have two grey tanks.The kitchen dump vale I installed the garden hose end cap and bought the sewer flange that has the garden hose inlet.Rigged up a swivel fitting and plug for it.I just hook up the hose and leave the valve open on the 5er.Easy peazy.Use the hose for the black tank flush when I'm ready to dump.

I also use this method..to me it's the most simplistic


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Old 07-29-2014, 11:23 AM   #19
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Originally Posted by TxTravelingRN View Post
I use this method as well. I also put valves at distal end of hoses prior to Y connection by CG drain to prevent back flow from 1 hose to the other when draining. 1 gray tank is under slide out and inaccessible so I leave that valve open and control with valve by CG drain .


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I hadn't thought about adding valves but did want something to prevent back flow into the other hose. I guess I was over thinking it and trying to make it too hard. Thanks for the idea
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Old 07-29-2014, 11:33 AM   #20
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why in the world did they, FR, put 2 drain outlets under any coach.. Unless their is no room for the single to join.. I have 4 tanks, 2 in the back and 2 just in front of the wheels and all exit out of 1 outlet in front of the wheels
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