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Old 11-03-2012, 12:57 PM   #1
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antifreeze in freshwater tank??

just wondering if its necessary to put a liter or so of antifreeze in the freshwater tank? I have done this in the past 3 years but it takes a while to get it out of the system in the spring.(maybe this explains the lump on my neck,just kidding) We have never used the water for drinking or cooking!
Im afraid there's a fitting or something in the tank thats looking for an excuse to freeze and crack! I have drained the tank completely. Does the pump hose just sit in the bottom of the tank or is it a little more complex (an elbow or something that could trap water)
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Old 11-03-2012, 01:15 PM   #2
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never put antifreeze in mine .
if its drained its fine.
I also leave the pet cock open but others don't .


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Old 11-03-2012, 01:22 PM   #3
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I IMO dont think its necessary to put AF in FW tank. (also big problem to get rid of the AF taste) If you drain the tank there will very little water to freeze. Did you use air compressor or just use pump to fill lines with AF? Most pumps have filter at inlet so dont think there is one inside tank. (but could be wrong).
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Old 11-03-2012, 01:27 PM   #4
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Quote:
Originally Posted by f1100turbo View Post
never put antifreeze in mine .
if its drained its fine.
I also leave the pet cock open but others don't .


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Old 11-04-2012, 07:41 AM   #5
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I never put antifreeze in the FW tank and close the petcock after draining to keep the bugs out of the tank.

Just remember you will need to sanitize the tank with bleach or a commercial RV sanitizer when you de-winterize.
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Old 11-04-2012, 08:18 AM   #6
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No need to add anything to the FW tank. Drain and call it a day.
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Old 11-04-2012, 10:00 AM   #7
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I always put it in my fw tank in the spring have to clean it out anyways so it will not hurt a thing just extra protection
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Old 11-04-2012, 10:15 AM   #8
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No antifreeze in FW tank
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Old 11-05-2012, 09:51 PM   #9
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I experimented one year mixing anti freeze with water at different ratios and left the bottles in the camper. even 3/4 af to 1/4 water froze at about 20 degrees. The antifreeze pretty much works only at 100% strength. Any water at all left in the tank would take a lot of af to be safe. I take a small plunger to blow out the traps for that reason too.

I don't know why they don't taper the bottom of the tank toward a bottom drain. Maybe I can sell the idea to the Sharks and make a million.
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