Iceman31
Gravelbourg, SK, Canada
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This is my first FW and the first unit I have owned with a black tank flush. I was wondering how do you winterize this line as it surely must have water in it. I look forward to your responses.
2006 Dodge 2500 SLT 4 x 4 c/w 5.9L & 3.73 - 4 spd Auto Transmission
2008 Crossroads Cruiser CF31QB
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2001 17' Silverline c/w 90HP Mercury
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Benny20037
Ottawa, ONT
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Iceman ... I plan on winterizing mine the same way I do all my other water lines. I use a compressor to blow everything out of the lines. I don't bother with RV anti-freeze in the lines although I do pour the anti-freeze in the sink traps.
2005 Glendale Titanium 28E33B
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donhov
near Jackson Michigan
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I do not think it holds any water when a hose is not hooked to it. Correct me if wrong but think it is just a hose coupling that goes to a small orifice inside the tank and when hose is disconnected think it just drains down into the tank so no winterizing is required. If I'm wrong mine has never frozen or broke so far, 2 years and counting.
2003 Cedar Creek 30RLBS
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Wgeorge11
Wertzville, PA
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IMO the black water tank is the least of your freeze up worries. I assume most people dump their black/gray tanks routinely unless they have some residual 2 year old fetish oohing and aahing about the outcome. In 20+ years I've never had a problem with these tanks..
However, I once had a problem after blowing the lines with compressed air. 99.5% isn't enough. The remaining .05% will find a low spot and do its deed. Never had a problem with antifreeze. It's always 100% effective.
Whatever works for you is the way to go.
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Hoops
Indiana
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We live in Indiana and the winters that we stay here(hope not too many) I winterize the tanks. I use about 2 gals of antifreeze.I use the pump to get the antifreeze into all the lines. Bypass the water heater(just drain the water out of it). Let the antifreeze flow into your tanks.Hope this helps. As far as the black tank flush, we don't do anything special to it when we winterize.
Hoop
* This post was
edited 09/01/07 11:35am by Hoops *
The Hoops. ED and Becky
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cdrcos
St. Paul, MN
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Hoops wrote:We live in Indiana and the winters that we stay here(hope not too many) I winterize the tanks. I use about 4 gals of antifreeze.I use the pump to get the antifreeze into all the lines. Bypass the water heater(just drain the water out of it). Let the antifreeze flow into your tanks.Hope this helps.
Hoop
Same way - I also use antifreeze, but have never used more than 2 gals, - more like 1.5 gallons, not sure where the extra goes, especially if you are bypassing the water heater.
Joe & Barb
2002 F-350,PSD,Crew Cab
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TnTtravelers
East Slope Sierra, California, USA
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He's asking about the "flush system", (not the tank)which sprays water into the black tank to remove buildups on the walls of the tank, using an outside pressure source. The concern would be the line itself, and I believe it has high and low points for back flow prevention,that might trap residual water???
I hadn't thought about the flush system on mine, until now. Thanks for bringing this up. It may have saved me a headache next spring.
There are fittings available at RV stores/Wallmart, that would screw into the flush system inlet. They have an air attachment on the other end of this fitting. I suppose you could hook one of those up to the inlet and push compressed air into the line, pushing any residual water into the black tank. You probably would need to either have the black tank drain open, or have someone hold open the flush mechanism on the toilet while doing this, however. (I would think that the pressure from the air compressor might damage the seals if there was nowhere for the pressure to vent to...) Just a thought.
I'll be checking back on this thread to see if there are any other ideas.
T
* This post was
edited 09/01/07 10:54am by TnTtravelers *
Tim and Tina (kudo too)
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boulderado
Colorado
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So far we've not done anything special to winterize ours and have had no problems the past two winters. Ours is mounted so it drains a bit of water after we disconnet the hose, but yours might be different.
Knut and Susan FMCA-351422
Still looking for that perfect new rig
'08 Jeep Liberty 6-speed w/Blue Ox Aventa II
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TnTtravelers
East Slope Sierra, California, USA
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donhov wrote:I do not think it holds any water when a hose is not hooked to it. Correct me if wrong but think it is just a hose coupling that goes to a small orifice inside the tank and when hose is disconnected think it just drains down into the tank so no winterizing is required. If I'm wrong mine has never frozen or broke so far, 2 years and counting.
Maybe yours is different than the design of mine, but I have read on Everest Owners Club dot com that the Everest has a high point where the backflow preventor is located. I'm thinking that adjacent to this (low spot) might be a place where water can accumilate...?
Looking forward to seeing the results of this thread. Hopefully manufacturers have forseen this and planned these systems out for self drainage after disconnect.
* This post was
edited 09/01/07 02:21pm by TnTtravelers *
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kennethwooster
Perryton Tx USA
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I never thought about the black tank flush. Out of 3 units I've never had a problem. Maybe I should blow this one out. The one I have now is high on the side of the trailer. I bet it will drain out. I'll check that out.
kenneth wooster- school bus driver & teacher
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