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Old 01-23-2018, 12:49 PM   #1
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Winterizing 377, how many gallon of antifreeze?

After our post-purchase shakedown cruise this weekend, I'll have to put the rig back into hibernation. How many gallons to properly winterize this unit?
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Old 01-23-2018, 12:59 PM   #2
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It should take 2-3 gallons to flush the water lines, sink traps, toilet. Always better to have more than enough on hand to complete the job
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Old 01-23-2018, 01:29 PM   #3
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Quote:
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Always better to have more than enough on hand to complete the job
Agreed. I would have at least 5 gallons on hand for the first time. I can do our 36" TT with 2 but I like to dump a lot in the p-traps and the black tank to keep the valves lubricated.
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Old 01-23-2018, 01:41 PM   #4
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Don't forget the outside shower if you have one.
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Old 01-23-2018, 02:25 PM   #5
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2-3 gallons is what I usually use and have 1/2 gallon left over. As stated run all faucets after bypassing and draining the water and closing the lp drains, until you see pink at every faucet hot and cold with the pump pulling water from a jug. Don't forget the toilet and outside shower.

I put the jug in a bucket to keep the hose from knocking it over.
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Old 01-23-2018, 02:34 PM   #6
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Thanks, all. I have experience actually doing RV winterizing, just on a much smaller rig. I fill my boat's winterizing jug and put it on a ladder, turn on fresh water pump, open all the faucets/showers, flush the toilet, then pour extra down the drains and toilet.

The water and ice dispenser in the fridge will be a new one on me, though. Any online tutorials?
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Old 01-23-2018, 02:37 PM   #7
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Read this thread: https://www.jaycoowners.com/forums/f...tml#post556692
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Old 01-23-2018, 04:17 PM   #8
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Our baby brother to your 377 takes just over a gallon.
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Old 01-23-2018, 04:58 PM   #9
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I use 2 gallons in our 377 each fall
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Old 01-23-2018, 05:18 PM   #10
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Make sure the water heater is bypassed unless it is done automatically.
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