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Old 10-04-2012, 12:33 AM   #1
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Further winterizing mysteries

I have these two lines poking out the rear left of the trailer, right where the grey and black tanks are. There is another blue line in the middle on the right side (where presumably the fresh water tank is). I opened the blue line in the middle to empty the fresh water tank.

Do I need to open these two lines at the rear for winterizing as well?

Also, what kind of hex nut do I need for the drain plug on a suburban heater? 1" wasn't enough.

Thanks
S.
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Old 10-04-2012, 01:11 AM   #2
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Those are the low point drain lines to drain all the water from the unit. Before adding antifreeze, you would open those lines and all the water faucets to get the water out. Then close the drains and the faucets and turn the water heater bypass valve. If you have a winterization bypass on your pump you would turn that and connect a hose to the inlet to suck the antifreeze into the system. You would also remove the water filter if you have one and replace the empty canister.

The w/h uses a 1 1/16 thin wall socket. Be sure to relieve the pressure before removing and do not stand directly in front as you remove the anode rod.
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Old 10-04-2012, 12:43 PM   #3
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Thanks. Dang, I already did the rest of the steps. Guess I'll need some more antifreeze.
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Old 10-04-2012, 02:08 PM   #4
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If you have already put antifreeze into the system I would just open the low-point drain caps a little until enough water/antifreeze came out, never fully removing the caps. No sense in redoing the winterization in total. See you are in the Seattle area. How low does your typical temp get? Are you storing your rig inside or outside? It takes an extended below freezing temp before the lines would be effected. Are you done camping for the season already? Still some good weather and lots of places in your area to enjoy!
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Old 10-04-2012, 05:34 PM   #5
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I've had a pipe burst that runs in the garage wall. It's not getting that cold every year, but it only takes one time to do the damage. So $15 in RV antifreeze is cheap insurance. We have outside storage.
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