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Old 09-21-2014, 11:52 AM   #1
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Hate this time of year :(

Getting ready to winterize the trailer and just wondering about the black tank flush ?
I have winterized my other trailers but the new one has the black tank flush.....so how do i winterize it as I am sure there is water in it
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Old 09-21-2014, 12:01 PM   #2
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As you run the AF through the system some does end up in the BW tank.
Given the size of the tank and relatively small amount of water there is tons of room for the ice to expand with no damage, just be sure to drain any water near the dump valve.

You could dump more down the toilet if you want.
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Old 09-21-2014, 12:14 PM   #3
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Back clean it real good then winterize just as you have in the past, you might blow some air in the back cleaning line to get water out or run some antifreeze in it.
Feel your pain as hating this time of year but for us we love it, it's time to start putting up the Christmas Lights we put up over 250,000 with 475 channels of computer control and 18,000 channels of DMX with time coded music allowing people to drive by and listen to the music on their FM radios. Lots of fun for the kids and the kid in all of us.
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Old 09-21-2014, 12:20 PM   #4
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Back clean it real good then winterize just as you have in the past, you might blow some air in the back cleaning line to get water out or run some antifreeze in it.
Feel your pain as hating this time of year but for us we love it, it's time to start putting up the Christmas Lights we put up over 250,000 with 475 channels of computer control and 18,000 channels of DMX with time coded music allowing people to drive by and listen to the music on their FM radios. Lots of fun for the kids and the kid in all of us.

The pipe running into the flush is what I was concerned about, I will just use some air to blow it out I guess....Thanks
Do you have any videos or pictures of the light show ? would love to see that in action.
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Old 09-21-2014, 06:14 PM   #5
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The pipe running into the flush is what I was concerned about, I will just use some air to blow it out I guess....Thanks
Do you have any videos or pictures of the light show ? would love to see that in action.
Tugger: Just use a hand pump designed for RV antifreeze. Hook it to the external hose fitting for the black flush and pump a dose of RV antifreeze through the fitting. OR, just blow it clear with air. Have a "nice winter"?
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Old 09-21-2014, 06:48 PM   #6
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Getting ready to winterize the trailer and just wondering about the black tank flush ?
I have winterized my other trailers but the new one has the black tank flush.....so how do i winterize it as I am sure there is water in it
Tugger if you have a O/S Shower adapt a fitting for your shower hose to garden hose and use your own F/W system to put A/Freeze into the Black tank flush! Youroo!!
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Old 09-21-2014, 07:12 PM   #7
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Tugger if you have a O/S Shower adapt a fitting for your shower hose to garden hose and use your own F/W system to put A/Freeze into the Black tank flush! Youroo!!
Brilliant!
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Old 09-21-2014, 07:25 PM   #8
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Thanks for the help...all done and tucked in for this year
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Old 09-21-2014, 07:29 PM   #9
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Never had that problem here in South Florida. Our camping season is just starting.

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Old 09-21-2014, 07:44 PM   #10
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Tugger if you have a O/S Shower adapt a fitting for your shower hose to garden hose and use your own F/W system to put A/Freeze into the Black tank flush! Youroo!!

I see lots of people suggest this in the past, but I never see anyone mention what fittings are required. Anyone know what size adapter is required?




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Old 09-21-2014, 07:47 PM   #11
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The Black flush vacuum breaker is a loop up behind the shower in my unit.The water comes back out when I disconnect. Thinking air would adequete or the Youroo method.
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Old 09-26-2014, 06:55 AM   #12
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I typically go overboard when winterizing by blowing out all the lines with air and then running the bypass water pump converter which draws the antifreeze from the bottles thru the entire water system. I just turn on/off everything in the trailer including outside shower and sink.

To add to the process, I recently purchased a hand pump to do the external black tank inlet plus main water inlet. Attaching a photo of pump. Think Amazon has them real cheap now.

I like the idea of using the external shower hose to do same thing but took the easy route and just bought another tool.
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