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04-24-2013, 05:18 PM
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#1
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Winnebago Camper
Join Date: Jan 2011
Posts: 5
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Grey water into black water holding tank
I recently purchased a 2002 Itasca Sunrise 30W. My first Winnebago product. It is apparent after tests, that the grey water from the kitchen sink and the bathroom sink are running into the black water holding tank, causing it to fill quickly. It seems the only grey water going to the grey water tank is from the shower. This does not seem right. Anyone have a similar experience?
Jim
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Jim/Retired USMC/USN - HAM operator KE7OMX/2002 ITASCA SUNRISE - Jeep Liberty/Wife Gina-USMC/USN - quilter
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04-24-2013, 05:28 PM
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#2
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Winnebago Owner
Join Date: Nov 2009
Location: Olympia WA
Posts: 78
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On my Journey, bathroom sink and toilet go into black tank. The kitchen sink and shower go into gray water. So far not a problem.
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2012 Journey 36m
Ed
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04-24-2013, 05:35 PM
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#3
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Winnebago Camper
Join Date: Jan 2011
Posts: 5
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Thanks Ed......I will investigate further.
Jim
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Jim/Retired USMC/USN - HAM operator KE7OMX/2002 ITASCA SUNRISE - Jeep Liberty/Wife Gina-USMC/USN - quilter
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04-24-2013, 05:38 PM
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#4
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Winnie-Wise
Join Date: Jan 2012
Location: Cincinnati
Posts: 486
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I'm surprised at the kitchen sink going in black tank, but it is common for the bathroom sink to drain into black tank. Bathroom sink gets little water flow and the liquid helps the black tank flow better.
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Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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04-24-2013, 05:40 PM
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#5
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Winnebago Owner
Join Date: Jul 2010
Location: Tampa Area (sometimes!)
Posts: 71
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N4UUX here. I really think that something else is going on here my friend. When you say "after test" what do you mean. I think there is a simple test for this. First, open both your black and grey water tank dump valves. Put on one of the readily available transparent dump hose connectors. Then, run your various water sources. You will very quickly be able to determine what tank each water source drains to.
I'm very sure that the only thing going to your black tank is your toilet. I know it sounds crazy but is is possible you had your cap on the dump hose connection and had the black and grey tank dump valves open during your test. This would have effectively cross-connected your tanks.
Winnebago is a well established company with years of experience producing quality motorhomes. I seriously doubt that your coach rolled off the line with anything other than the toilet going to the black tank. Their may have been some aftermarket modifications though. You never know what people will do with a motorhome!
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Randy and Tina & pups: Cinnamon, Cookie & Coco
2010 Winnebago Journey 34Y
Freightliner / Cummins 340hp ISB
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04-24-2013, 06:15 PM
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#6
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Winnebago Camper
Join Date: Jan 2011
Posts: 5
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Many thanks to all. I will proceed with tests as suggested and report back.
Respectfully.......Jim
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Jim/Retired USMC/USN - HAM operator KE7OMX/2002 ITASCA SUNRISE - Jeep Liberty/Wife Gina-USMC/USN - quilter
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04-24-2013, 06:29 PM
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#8
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Winnebago Owner
Join Date: Jul 2008
Posts: 167
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But I could be wrong. The diagrams arent obvious.
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Bill & Dar - 2012 Journey 40U
STP, Bilsteins, Ready Brute pulling a 2013 Avalanche Z71
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04-24-2013, 08:08 PM
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#9
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Winnebago Camper
Join Date: Jan 2011
Posts: 5
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Thanks again to all. I will investigate further.
R/Jim
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Jim/Retired USMC/USN - HAM operator KE7OMX/2002 ITASCA SUNRISE - Jeep Liberty/Wife Gina-USMC/USN - quilter
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04-25-2013, 06:20 AM
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#10
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Winnebago Owner
Join Date: Dec 2009
Location: Mcdonough, Ga.
Posts: 73
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Of all the stupid ideas motorhome manufacturers came up with, The dumbest was to route soapy water into the black tank to help keep the probes clean. The manuf. were paying dealers for probe testing and troubleshooting. Some smart engineer (who never camped a day in his life) said lets route water from the sink and help clean the probes. Even Airstream, who is usually in the know, jumped on the bandwagon. Most of the manuf. have tried this at some point. I am sure yours came from the factory this way.
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1998 Pace Arrow 35 ft. F53 Ford V10 2012 Honda Civic toad
32 years mechanic at Delta Air Lines 15 year motorhome service manager. 3 popups....2 travel trailers....5 motorhomes....loved them all.
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04-25-2013, 06:51 AM
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#11
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Winnie-Wise
Join Date: Oct 2002
Location: Madison, MS
Posts: 450
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Quote:
Originally Posted by ga traveler
Of all the stupid ideas motorhome manufacturers came up with, The dumbest was to route soapy water into the black tank to help keep the probes clean. ,,,,,,,,,,,. I am sure yours came from the factory this way.
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I did not know that. All this time, I've assumed my bathroom sink draining into the black tank was to save 50 cents on their cost of plumbing supplies.
FWIW, my "probes" are on the outside of the tank.....and yet they still don't work very well Should I spray them with soapy water?
Ed
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2016 EC Aspire 42RBQ / 2014 CR-V
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04-25-2013, 02:03 PM
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#12
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Winnebago Master
Join Date: Aug 2002
Location: ...hopefully on the road!
Posts: 1,653
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Quote:
Winnebago is a well established company with years of experience producing quality motorhomes. I seriously doubt that your coach rolled off the line with anything other than the toilet going to the black tank.
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Winnebago-built coaches for many years now have plumbed the bathroom sink to the black tank. My understanding of the reason, as stated above, is to get a bit more liquid into the black tank to aid in dumping. Most folks fill the gray tank much faster than the black, so for most folks this is not an issue.
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Paul (KE5LXU) ...was fulltimin', now parttimin'
'03 Winnebago UA 40e TRADED OFF JUL 2023 / '17 Jeep Grand Cherokee toad
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04-26-2013, 06:22 AM
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#13
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Winnebago Owner
Join Date: Dec 2009
Location: Mcdonough, Ga.
Posts: 73
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Quote:
Originally Posted by f14av8r
N4UUX here.
Winnebago is a well established company with years of experience producing quality motorhomes. I seriously doubt that your coach rolled off the line with anything other than the toilet going to the black tank. Their may have been some aftermarket modifications though. You never know what people will do with a motorhome!
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The next time you talk to a factory rep. Ask about this. I can tell you for a fact that The Winnebago did this.
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1998 Pace Arrow 35 ft. F53 Ford V10 2012 Honda Civic toad
32 years mechanic at Delta Air Lines 15 year motorhome service manager. 3 popups....2 travel trailers....5 motorhomes....loved them all.
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04-26-2013, 06:33 AM
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#14
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Winnebago Owner
Join Date: May 2012
Location: Great Smoky Mountains, TN
Posts: 56
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Quote:
Originally Posted by erstanfo
On my Journey, bathroom sink and toilet go into black tank. The kitchen sink and shower go into gray water. So far not a problem.
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Same with my 2004 Winnebago Adventurer.
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Chillbilly - Maryville, TN - Forest River Rockwood 5th Wheel - Ford F250 - Semper-Fi
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04-26-2013, 07:54 AM
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#15
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Winnebago Watcher
Join Date: Apr 2013
Location: Haslet TX
Posts: 3
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I have a 96 Itasca and the bathroom sink goes into the blackwater tank the kitchen and shower go to the gray water.
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04-26-2013, 08:05 AM
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#16
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Winnebago Master
Join Date: Jan 2007
Location: Litchfield Park, Arizona
Posts: 656
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Quote:
Originally Posted by f14av8r
I'm very sure that the only thing going to your black tank is your toilet.
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Simply not true.
I had always thought the purpose of routing non-toilet water to the black tank was to balance how quickly the black and grey tanks filled. We will fill our grey tank many times faster than our black.
Rick
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Rick, Nancy, Peanut & Lola our Westie Dogs & Bailey the Sheltie.
2007 Itasca Ellipse 40FD
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04-26-2013, 08:25 AM
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#17
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Winnebago Owner
Join Date: Jun 2012
Location: SoCal
Posts: 227
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My previous coach, a Safari Trek, had the bath lav plumbed to the black tank. Made it easy to add a couple gallons to the black tank after dumping.
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Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
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04-26-2013, 08:25 AM
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#18
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Winnebago Camper
Join Date: Feb 2007
Location: Bellevue, Nebraska
Posts: 41
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Quote:
Originally Posted by RickO
Simply not true.
I had always thought the purpose of routing non-toilet water to the black tank was to balance how quickly the black and grey tanks filled. We will fill our grey tank many times faster than our black.
Rick
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As well, we have had a few Winnebagos, as well as other brands. Many of them had the bathroom sink plumbed to the black tank. As well as our current Windsport. But I've not yet found a kitchen sink plumbed there.
GL Arnold
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2003 Winnebago Vista 21b
Former Full-Timers
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04-26-2013, 08:53 AM
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#19
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Winnebago Owner
Join Date: Nov 2006
Location: Anywhere, USA
Posts: 200
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Ditto several previous replies - I don't see the problem with the bathroom sink draining into the black tank. Provides additional liquid to flush the solids out. Our washer and shower share a gray tank, with the dishwasher and kitchen sink draining to other gray tank.
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John & Marilyn Yoder, Sophie & Misha (Bichons)
2008 Vectra 40TD, WIT-151980 FMCA F265880
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