winterize hot and cold as you would with any other system.
I use about 12 gallons of rv anti-freeze into fresh water tank and run hot and cold until pink comes out all outlets including ice-maker. At $5.00 or less a gallon, it is thorough and I've had zero problems. use a compressor to blow lines and tank empty before adding anti-freeze.
Hope this info helps.
Aime--- AJ
2002 Mountain Aire DP
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