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10-20-2015, 08:07 PM
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#1
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Junior Member
Fleetwood Owners Club
Join Date: Sep 2012
Location: NJ
Posts: 14
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Winterization 2010 Fleetwood Discovery
 I have 2010 40x Fleetwood Discovery that I need to winterize. Manual is unclear on procedure to winterize. I drain system fine but when I pump in antifreeze it fills up drained water heater before going to hot water lines. That will take almost 10 gallons on antifreeze $$$$$$. I can not find any access to the back of the water heater to see if any water heater bypass valves exist or to be able to install bypass. Also have no idea what the "bypass valve" located at the water service panel does??? Any help would be appreciated! Thanks……..
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10-20-2015, 08:10 PM
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#2
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Senior Member
Fleetwood Owners Club
Join Date: Jun 2014
Location: Lakeway,tx
Posts: 249
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Not sure but I think the bypass valve at water bay bypasses the water heater. Water heater has a separate drain. Good luck. JD
__________________
Jeff & Steph
2010 Discovery 40x Spartan Cummins ISB
2015 Wrangler Sahara Unlimited
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10-20-2015, 08:11 PM
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#3
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Senior Member
Fleetwood Owners Club
Join Date: Jun 2014
Location: Lakeway,tx
Posts: 249
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On mine there ar instructions printed on back os water service bay door. Good luck. JD
__________________
Jeff & Steph
2010 Discovery 40x Spartan Cummins ISB
2015 Wrangler Sahara Unlimited
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10-20-2015, 08:27 PM
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#4
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Junior Member
Fleetwood Owners Club
Join Date: Sep 2012
Location: NJ
Posts: 14
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Thanks! I will check…..nice to be in Texas where you probably don't have to worry about these things.
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10-21-2015, 05:52 AM
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#5
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Senior Member
Fleetwood Owners Club Ford Super Duty Owner
Join Date: Oct 2013
Location: northern IL
Posts: 2,557
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Yea there will be a water heater bypass valve so you should only have to use between 2 and 3 gallons
__________________
2014 Fleetwood Bounder 35k
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10-21-2015, 07:42 AM
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#6
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Senior Member
Fleetwood Owners Club
Join Date: May 2011
Location: Southwest
Posts: 1,549
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Our 2012 Discovery has a water heater bypass valve located in the water bay. I used about 3 gallons last week when I winterized the system.
__________________
Joe and Debbie, Emma the Aussie Cattle Dog who adopted us
2012 Discovery 36J, Blue Ox and Air Force One, 2010 GMC Acadia Toad
USAF (Ret) WDØM https://wd0m.com
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10-21-2015, 07:49 AM
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#7
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Registered User
Join Date: Mar 2010
Posts: 8,777
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Quote:
Originally Posted by mojoracing
Yea there will be a water heater bypass valve so you should only have to use between 2 and 3 gallons
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mojoracing
Are you saying that EVERY 2010 Fleetwood Discovery came with a "water heater bypass valve" installed?
Mel
'96 Safari
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10-21-2015, 08:34 AM
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#8
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Junior Member
Fleetwood Owners Club
Join Date: Sep 2012
Location: NJ
Posts: 14
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What I am trying to say is my Discovery has this "instant action RV Hot Water Heater Bypass Valve" (Picture) with zero instructions. I am trying to winterize but all the antifreeze just dumps into the hot water heater and never gets to the plumbing. What is the solution????
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10-21-2015, 10:10 AM
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#9
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Senior Member
Ford Super Duty Owner
Join Date: Dec 2009
Location: Mcdonough, Ga.
Posts: 5,932
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Quote:
Originally Posted by mel s
mojoracing
Are you saying that EVERY 2010 Fleetwood Discovery came with a "water heater bypass valve" installed?
Mel
'96 Safari
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Discovery came standard with the bypass valve. So did Pace arrow. In the 1998 to now period.
__________________
1998 Pace Arrow 35 ft. F53 Ford V10 2014 Honda CRV 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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10-21-2015, 10:14 AM
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#10
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Senior Member
Ford Super Duty Owner
Join Date: Dec 2009
Location: Mcdonough, Ga.
Posts: 5,932
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Quote:
Originally Posted by Rkkcf
Attachment 110061
What I am trying to say is my Discovery has this "instant action RV Hot Water Heater Bypass Valve" (Picture) with zero instructions. I am trying to winterize but all the antifreeze just dumps into the hot water heater and never gets to the plumbing. What is the solution????
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Turning the valve to bypass should bypass the water heater. If it not, check the back of the valve. It may have frozen or broken and been replummed.
__________________
1998 Pace Arrow 35 ft. F53 Ford V10 2014 Honda CRV 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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10-21-2015, 11:53 AM
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#11
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Registered User
Join Date: Mar 2010
Posts: 8,777
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Quote:
Originally Posted by ga traveler
Discovery came standard with the bypass valve. So did Pace arrow. In the 1998 to now period.
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ga trveler
Thanks for the answer...(I wasn't aware of that).
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10-21-2015, 04:58 PM
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#12
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Member
Join Date: Apr 2011
Posts: 68
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I have a 2009 Southwind. The bypass does not work to keep antifreeze out of the water heater. I presume that there is a faulty check valve on the water heater. Any advice?
__________________
Celerator (Joe)
'09 Fleetwood Southwind 32VS
Victoria, BC Canada
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10-22-2015, 05:48 AM
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#13
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Registered User
Join Date: Mar 2010
Posts: 8,777
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Quote:
Originally Posted by Celerator
I have a 2009 Southwind. The bypass does not work to keep antifreeze out of the water heater. I presume that there is a faulty check valve on the water heater. Any advice?
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Celerator
It is NOT necessary to use RV antifreeze in the fresh water system.
There are many owners who winterize successfully by draining the fresh water system and "blowing out" the waterlines with air.
See: How to winterize an rv by blowing out the linesFunky Junk Interiors
And/or Goggle " blowing out rv water lines with air compressor".
BTW, although I do not recommend it, when winterizing my coach I DO NOT "blow out" or "put antifreeze in" the fresh water system of my coach).
I simply gravity drain everything and use antifreeze in the P-traps and Splendide washer drain pump.
Mel
'96 Safari, (mine for 14 wiscinsin winters)
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10-25-2015, 03:29 PM
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#14
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Junior Member
Fleetwood Owners Club
Join Date: Sep 2012
Location: NJ
Posts: 14
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Wanted to thank all who replied! Hopefully this reply will serve to help those who have questions in the future. I contacted Swan Industries since my MH has a Swan By-Pass valve.
I explained that in "by-pass" the water heater was filling with anti-freeze. They provided attached sketch. The culprit is the check valve that has foreign material in it and needs repair/replacement. Their website shows the check valve needed to repair. Very friendly people and very helpful.
Bypass sketch.pdf
In my efforts to find a solution I was able to access the back side of the water heater from the floor of my fleetwood closet. My system has a single bypass valve that bypasses the water heater. I turned the valve, serviced the system with anti-freeze, and avoided repairing the Swan valve. Hopefully this will help others and again Thanks!
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