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Old 07-01-2015, 01:07 AM   #1
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HW276 grey water hookup

On the Rockwood high walls, the grey water looks like it is a 1.5" outlet and the black water is a 3" standard hookup. My question is, would something like this:

RV Hydro Flush 45 Degree - Valterra F02-4100 - Sewer Flushing - Camping World

work to use in conjunction with the blackwater tubing. I was hoping to rinse the blackwater out of the hose before I unhook it.

I guess the other option is to adapt the grey down to a garden hose and adapt that to a 3" outlet in to the dump station.

Is there something I am missing? Thanks!
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Old 07-01-2015, 07:16 AM   #2
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lots of posts regarding this subject below your post.
There are lots of great solutions there.
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Old 07-12-2015, 12:34 AM   #3
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Just wanted to let you guys know that I successfully installed a double valve on my black water side and hooked the grey water to the smaller side. Works great and I love that I have only one hookup now that can be flushed with grey after a black water empty!

I am still not sure why they have 2 separate hook ups for these, seems like it could be very inconvenient to use both. Is it because they added the black as an after thought?
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Old 07-14-2015, 01:38 PM   #4
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Avengence,
Can you post a pic or describe what you did with part information. I am picking up a 2013 hw27ks this week and want to go straight to work getting something configured.
Thanks
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Old 07-14-2015, 04:59 PM   #5
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See my post on this here


HW296 plumbing MOD
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Old 07-15-2015, 12:03 AM   #6
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Quote:
Originally Posted by 2gwright View Post
See my post on this here


HW296 plumbing MOD
I copied his. It is very easy. I got ABS pipe at home depot for like 5 dollars for 10' and a 90 degree bend for 2. The valve was 40 from amazon. The glue was roughly 3 dollars. It all went together and I tested it after it dried, no leaks.

I literally just cut off the grey water valve and put the 90 on it and did a straight shot to the valve, it lined right up. It looks really nice that way and the grey can be used to flush out the black water from the hose after each dumping, which can be daily in these popups.

Thank you for sharing your info 2gwright, I may not have figured that out on my own.
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Old 07-15-2015, 06:12 AM   #7
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Thanks 2gwright and avengence. For now I may just go the adapter route. I'm a little too timid to start cutting into plumbing as soon as I get it. If something went wrong, I would never hear the end of it from the other half. I may do this once we've had it a while.

Thanks again.
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Old 07-16-2015, 06:26 PM   #8
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As was stated. You can do a search on here and see what people have done. I made a simple adapter that some showed on here. Just screw it on and remove when not needed.

Vin.
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