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Old 10-31-2011, 10:13 AM   #1
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Winterization Confusion

I attempted to winterize my Rockwood Mini-Lite 2306 over the weekend but am confused about how to get RV antifreeze through the lines. My manual shows two bypass valves in the diagram, both on the blue lines, that I am supposed to close to bypass the hotwater tank. However, there is a third bypass valve on the hotwater line, and I'm not sure if I need to do anything with that valve.

The manual also says to add antifreeze to the freshwater tank once all the lines are drained and blown out with compressed air. I added roughly 11/2 gallons of AF to the tank and turned on the water pump as per the instructions, but the AF won't pass through the lines. When I looked at the water tank, I can see the AF is above the suction hose leading out of the tank, but all I hear when I open the faucet and turn on the pump is a gurgling sound.

To complicate matters, I viewed an instructional video on how to winterize that I found on this site. The video instructs me to take a hose off the water pump, insert it into the AF gallon jug and turn on the pump. I am confused as to how I should proceed. I poured AF into the sinks and drains, also into the blacktank via the toilet, but I'm concerned on how to get AF into the water lines. As always, any help is greatly appreciated.

Greg
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Old 10-31-2011, 12:03 PM   #2
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Originally Posted by Gkconfer View Post
I attempted to winterize my Rockwood Mini-Lite 2306 over the weekend but am confused about how to get RV antifreeze through the lines. My manual shows two bypass valves in the diagram, both on the blue lines, that I am supposed to close to bypass the hotwater tank. However, there is a third bypass valve on the hotwater line, and I'm not sure if I need to do anything with that valve.
You probably have a three valve setup like the diagram below. The first diagram is for normal use and the second shows the valves turned for bypassing the hot water heater. Hope this helps.
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Old 10-31-2011, 12:15 PM   #3
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The manual also says to add antifreeze to the freshwater tank once all the lines are drained and blown out with compressed air. I added roughly 11/2 gallons of AF to the tank and turned on the water pump as per the instructions, but the AF won't pass through the lines. When I looked at the water tank, I can see the AF is above the suction hose leading out of the tank, but all I hear when I open the faucet and turn on the pump is a gurgling sound.

To complicate matters, I viewed an instructional video on how to winterize that I found on this site. The video instructs me to take a hose off the water pump, insert it into the AF gallon jug and turn on the pump. I am confused as to how I should proceed. I poured AF into the sinks and drains, also into the blacktank via the toilet, but I'm concerned on how to get AF into the water lines. As always, any help is greatly appreciated.

Greg
The manual said to fill the fresh water tank with antifreeze? That's just plain wrong.

As you have found out, its wasteful and expensive because of the amount of potable AF you would need to do this.

Your trailer probably needs only a couple of gallons of AF.

The video you saw probably refers to a winterization kit for the water pump (picture below). You can get them at the dealer or on Amazon or at Walmart. I would install that, drain the AF in your FW tank and reuse it (assuming that it wasn't mixed with too much water from the tank.

By the way, many just blow out the lines or winterize with AF. Some do both, but its probably not necessary.
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Old 10-31-2011, 12:25 PM   #4
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So if I understand you correctly, blowing the air out of the lines will be sufficient. I guess it's also safe to say that 1&1/2 glns of AF in the freshwater tank is not enough for the pump to suction it through the lines. I can hear gurgling when the pump is on but nothing comes out of the faucets.
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Old 10-31-2011, 12:41 PM   #5
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Yep - blowing is enough if you have already drained the low points and the tanks. You still need some AF for the traps and toilet. See the video on the FAQ section in the winterizing thread.

You would probably need a lot of AF in the FW tank to do it the way the manual described. Depending where the intake hose is attached you need to fill enough above that in order to get a couple of gallons sucked up into the lines. Wasteful and expensive because you will leave several gallons in the tank once done.

Plus that stuff, even it potable, doesn't taste good and you will want to flush out your FW tank well this winter or in the spring to get rid of the taste.
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Old 10-31-2011, 02:27 PM   #6
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if you haven't done it already or for others, DON'T PUT ANTIFREEZE IN THE FW TANK!
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Old 10-31-2011, 02:35 PM   #7
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I have a 2306 and as far as the WH bypass goes, you need to turn the levers on the red and blue (hot and cold) lines so they are perpendicular to the water line they attached to (= off), and turn the lever that is on the bypass line between them so that it is parallel (=on) to the water line.
Hope that makes sense.
As far as the AF goes, I dumped about 5 jugs into my FW tank and used 1 jug in the black tank and 1 jug split between each drain.
I never drink the water from the trailer so I am not concerned about the taste residue, besides the AF is in all the lines anyways......
If so inclined I could always open up the FW main drain and empty the remaining unused AF back into the jugs....
Reasons I used the FW tank instead of the antifreeze inlet is that idk where the bypass on the line is for the antifreeze inlet, as there is 2 there, and I needed to get it done ASAP, also I was redoing the winterization because the TT place did it wrong and I was concerned about water in the line from FW tank to pump as they did not drain any of my tanks.
Better luck next year for me........
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Old 10-31-2011, 02:40 PM   #8
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if you haven't done it already or for others, DON'T PUT ANTIFREEZE IN THE FW TANK!
Oh oh....too late.....
What reasons, other than possible residual taste, is there for not putting it into the FW tank?
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Old 10-31-2011, 07:46 PM   #9
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It's Not "wrong" to put AF in the FW tank. It won't break anything or hurt anything. Some would say it is uneconomical, inefficient or causes extra work later but it's not wrong.

It is easier to avoid the tank and suction right from the jug through the pump and into the lines. But I've seen plenty use AF in the tank with no real problems other than possibly having to do a few more rinses in the spring. Since most will be sanitizing in the spring anyway, the sanitization process usually involves a decent amount of rinsing anyway. So it's sort of 6 of one, half dozen of another IMHO.
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Old 10-31-2011, 08:33 PM   #10
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It's Not "wrong" to put AF in the FW tank. It won't break anything or hurt anything. Some would say it is uneconomical, inefficient or causes extra work later but it's not wrong.
Actually, the reasons you just cited are the reasons its widely considered wrong.
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