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11-15-2020, 03:17 PM
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#1
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Senior Member
Join Date: Feb 2020
Location: NY State
Posts: 3,089
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Winterized...Did I Miss Anything?
I winterized the coach today. What I did:
- Used the levelers to tilt the coach to the left
- Opened the fresh water drain
- Dumped the black and grey tanks, including a thorough black tank flush
- Disconnected the input line to the water pump
- Attached a fitting and hose to the water pump and put the hose in a gallon of RV antifreeze (changing each time the gallon container ran low)
- Turned on the pump and ran the outside shower until the I got what looked like full-strength antifreeze from both hot and cold taps
- Did the same for each set of taps in the coach; kitchen, bathroom including toilet and sprayer, bedroom sink, and shower, then repeated the cycle on each set of taps to be sure
- Set the Splendide WD on warm water and started a cycle, running it until the water level was about 2" above the bottom of the drum
- Stopped the WD and changed it to the drain cycle to pump out the antifreeze, then shut it off
- Unhooked the icemaker line from the refrigerator and ran the pump until I got anitfreeze out of the line
- Activated the icemaker solenoid and blew out the line to the icemaker itself
- Blotted up the water that was in the icemaker mold
- Added antifreeze to every trap, pouring an additional half gallon into each of the black and grey systems
- Ran out the fresh water fill hose from its reel and drained it
- Removed the water filter, cleaned the housing, and reassembled (without the filter until next season)
- Reconnected the pump and secured the fresh water drain and fill hose
- Dumped what little was in the black and grey tanks.
I think this covers everything in the coach's OM, and the manuals for the AquaHot, WD, and refrigerator, but this is my first time winterizing this coach. So if anyone spots anything I should have done, and didn't, please let me know!
This took me about 2.5 hours. (I had the Winnie down to about 20 minutes, but that ain't happenin' for the Tiffin, with its AH, WD, and icemaker!) I used four gallons of RV antifreeze to feel reasonably sure I had pure antifreeze coming out of everything.
__________________
John
1976 Southwind 28', '96 Winnie 34WK,
2006 Tiffin Allegro Bus 40QDP
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11-15-2020, 03:22 PM
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#2
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Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Apr 2012
Location: Southern NM
Posts: 3,323
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If you have the black tank flush you need to blow that line out.
__________________
2018 Allegro Bus 37AP
2014 Phaeton 40 QBH (sold)
2022 Jeep JLURD
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11-15-2020, 05:09 PM
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#3
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Senior Member
Join Date: Feb 2020
Location: NY State
Posts: 3,089
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Quote:
Originally Posted by garykk
If you have the black tank flush you need to blow that line out.
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Will do. Thanks! (This one's not in the owner's manual, but at least it's easy and quick.)
__________________
John
1976 Southwind 28', '96 Winnie 34WK,
2006 Tiffin Allegro Bus 40QDP
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11-15-2020, 08:05 PM
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#4
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Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Apr 2012
Location: Southern NM
Posts: 3,323
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Quote:
Originally Posted by n2zon
Will do. Thanks! (This one's not in the owner's manual, but at least it's easy and quick.)
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The cheapy check valve that Tiffin uses is plastic and if it freezes and cracks, the next time you use the black tank flush you’ll have a flood
__________________
2018 Allegro Bus 37AP
2014 Phaeton 40 QBH (sold)
2022 Jeep JLURD
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11-15-2020, 08:31 PM
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#5
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Senior Member
Tiffin Owners Club Ford Super Duty Owner
Join Date: May 2015
Posts: 1,920
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Quote:
Originally Posted by garykk
The cheapy check valve that Tiffin uses is plastic and if it freezes and cracks, the next time you use the black tank flush you’ll have a flood
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Interesting. On my 34PA, there is no check valve on the flush line, and what water doesn't make it to the sprayer just runs back out the hose. I thought it was designed that way so that there wouldn't be any residual water in the line to freeze, and also so you wouldn't have to pressurize the black tank as you use air to force the water out of the flush line sprayer. Because of the draining of the water from the flush line, I use a 7' section of hose between the water source at the dump station and the flush connector in the wet bay to allow the water to drain away from the wet bay and RV before I unhook the hose from the flush line connector. I think I like it better with no check valve in that line.
__________________
Mike and Cindy
2016 Tiffin Allegro Open Road 34PA
2018 Chevy Malibu
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11-16-2020, 04:21 AM
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#6
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Senior Member
Join Date: Feb 2020
Location: NY State
Posts: 3,089
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Quote:
Originally Posted by Mike8253
Interesting. On my 34PA, there is no check valve on the flush line, and what water doesn't make it to the sprayer just runs back out the hose. I thought it was designed that way so that there wouldn't be any residual water in the line to freeze, and also so you wouldn't have to pressurize the black tank as you use air to force the water out of the flush line sprayer. Because of the draining of the water from the flush line, I use a 7' section of hose between the water source at the dump station and the flush connector in the wet bay to allow the water to drain away from the wet bay and RV before I unhook the hose from the flush line connector. I think I like it better with no check valve in that line.
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The black tank is vented. You can't build up pressure in it. Same for the grey tank. If they weren't, you'd pull a vacuum in each tank when dumping. They would gurgle to admit air like an inverted water bottle or the tanks would collapse while you dumped.
I replaced the fresh water check valve this year. One reason I drained the fresh water fill hose was to make sure that valve was drained from both sides. If there's on like it inside the tank flush, it's worth blowing some air in there to be sure it's dry.
__________________
John
1976 Southwind 28', '96 Winnie 34WK,
2006 Tiffin Allegro Bus 40QDP
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11-16-2020, 05:06 AM
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#7
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Senior Member
Winnebago Owners Club iRV2 No Limits Club
Join Date: Aug 2013
Posts: 1,164
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Ours is not a Tiffin unfortunately but our manual says to gently push the city water hose connector in the middle pin to relieve pressure and drain the city water fill line.
When I do that a small bit of water squirts out. You might try it and see if you get pink or still a bit of water.
__________________
2014 Itasca Sunova 33C, 2019 Jeep Cherokee Lattitude Plus toad, Demco tow bar, SMI braking system. 20 yr USAF ret.
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11-16-2020, 05:15 AM
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#8
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Senior Member
Join Date: Nov 2013
Posts: 5,771
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Quote:
Originally Posted by garykk
If you have the black tank flush you need to blow that line out.
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I hook up a hose to the black tank flush and fill it with antifreeze then blow it through the system with low pressure air. Repeat a couple of times.
__________________
2015 Tiffin Phaeton 40QBH
2018 Chevrolet Colorado Toad
Roadmaster Tow Setup
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11-16-2020, 06:11 AM
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#9
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Senior Member
Join Date: Nov 2017
Posts: 220
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Do as Tiffin tells you. I have run this video and followed each step while processing our rig for winter the last two November’s. Easy peasy.
https://tiffinmotorhomes.com/videos/...your-motorhome
__________________
2019 Tiffin Allegro Open Road 32 SA, Ruby Too.
2016 Subaru Crosstrek, Soobie.
2004 Lazy Daze Class C (sold) Ruby
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11-16-2020, 09:14 AM
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#10
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Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Apr 2012
Location: Southern NM
Posts: 3,323
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Quote:
Originally Posted by Mike8253
Interesting. On my 34PA, there is no check valve on the flush line, and what water doesn't make it to the sprayer just runs back out the hose. I thought it was designed that way so that there wouldn't be any residual water in the line to freeze, and also so you wouldn't have to pressurize the black tank as you use air to force the water out of the flush line sprayer. Because of the draining of the water from the flush line, I use a 7' section of hose between the water source at the dump station and the flush connector in the wet bay to allow the water to drain away from the wet bay and RV before I unhook the hose from the flush line connector. I think I like it better with no check valve in that line.
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If you have a black tank flush, you have a vacuum/ check valve, unless someone removed it. It’s clear plastic and usually found in the bathroom sink cabinet.
__________________
2018 Allegro Bus 37AP
2014 Phaeton 40 QBH (sold)
2022 Jeep JLURD
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11-16-2020, 10:42 AM
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#11
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Senior Member
Tiffin Owners Club Ford Super Duty Owner
Join Date: May 2015
Posts: 1,920
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Quote:
Originally Posted by garykk
If you have a black tank flush, you have a vacuum/ check valve, unless someone removed it. It’s clear plastic and usually found in the bathroom sink cabinet.
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It's in storage now so I'll have to go look. But the way the water runs out of the hose, I'm sure there's nothing there that is performing that function. Been that way since the day I got it 4-years ago.
__________________
Mike and Cindy
2016 Tiffin Allegro Open Road 34PA
2018 Chevy Malibu
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11-16-2020, 10:51 AM
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#12
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,311
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To the OP , I didn't see bypass the hot water heater and drain; on the list in post number one , typing omission ?
I know my speed reading isn't perfect , but I did go through the list twice.
Or is your hot water part of the Aqua Hot system . I don't have Aqua Hot so I can't be sure.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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11-16-2020, 01:06 PM
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#13
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Senior Member
Join Date: Feb 2020
Location: NY State
Posts: 3,089
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Quote:
Originally Posted by Skip426
To the OP , I didn't see bypass the hot water heater and drain; on the list in post number one , typing omission ?
I know my speed reading isn't perfect , but I did go through the list twice.
Or is your hot water part of the Aqua Hot system . I don't have Aqua Hot so I can't be sure.
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The AquaHot also provides domestic hot water, so we have no hot water heater.
__________________
John
1976 Southwind 28', '96 Winnie 34WK,
2006 Tiffin Allegro Bus 40QDP
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11-16-2020, 01:16 PM
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#14
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Senior Member
Join Date: Feb 2020
Location: NY State
Posts: 3,089
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Quote:
Originally Posted by Ddjay
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Great video. Unfortunately, the systems on our coach are completely different. For example, AquaHot says not to use compressed air to blow things out or Really Bad Things (read "expensive") will happen.
__________________
John
1976 Southwind 28', '96 Winnie 34WK,
2006 Tiffin Allegro Bus 40QDP
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