Getting all the water out of the water heater
When you drain your water heater, and get ready to winterize your rig, do you remove ALL the water out of the water heater? There is usually about 1/2 gal or so left in it. There will not be any damag...
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I drain the potable water, water heater(don't worry about the little left in there), black and gray tanks, then bypass the whtr and blow low pressure air thru the supply system with all faucets open including the toilt bowl and then poor pink RV stuff in the traps and some in the toilet and gray tank so the valves will have antifreeze against them. Haven't had a problem yet in the cold ID winters.
