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Old 10-18-2014, 09:20 AM   #1
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Winterizing problem with 06 Diplomat

A couple of days ago I started the wintering process on my MH,. I blow air in all the piping and then started to add plumbing antifreeze.
I installed the hose supplied by Monaco to the winterizing inlet, turned the valve to the proper position, put the hose in the antifreeze container and started the water pump.

No antifreeze was pumped in the hose, the I tried elevating the antifreeze container, but after trying all kind of things, no fluid got into the pump.

After a while I removed a hose going to the small water filter and was able to suck up the fluid in my MH.

My question, what can I check on the Monaco winterizing system. I tried afterward opening and closing the valve to the system and there was no suction at all. What's wrong.
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Old 10-18-2014, 09:27 AM   #2
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Either you did not get the winterizing valve into the right position, or the valve is not working. As you discovered, the old fashioned way to suck antifreeze into the system is to disconnect the inlet tube to the water pump and pop it into the antifreeze container.
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Old 10-18-2014, 09:30 AM   #3
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Is it possible that there is another valve between the valve you are switching and the fresh tank? If so, it could be that the pump is pulling from the fresh tank with a low enough required suction that it isn't pulling from your anti-freeze jug. That would be a good possibility if the valve you are switching is not in the "tee" but just in the ant-freeze suction line.
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Old 10-21-2014, 11:10 PM   #4
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Do you have the manual for your rig????? page 190 & 191???







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Old 10-22-2014, 08:20 AM   #5
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I think my system is sucking up air somewhere. It's been quite cold the last few days but today I'll check the connections, and will tighten them up.<

I hope it will work, but I only need the system working for next year.
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Old 10-24-2014, 03:53 PM   #6
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I've tightened all the elbows, and other connections going to the pump. I've put some teflon tape on the hose ( hose used to go in the antifreeze container ) also added teflon tape on the back of fitting where hose is plugged., I also found that on the small filter ( or particle filter ) going to the pump that some air was being sucked there.

Now it works.
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Old 10-24-2014, 09:24 PM   #7
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Before you tried pumping from the bottle, did you close the drain valves. On some models the pump suction and tank drain use the same tank penetration. Other drain valves drain low spots from various points in the system.
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Old 10-25-2014, 09:02 AM   #8
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Yes the drain valves were closed.
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Old 10-26-2014, 08:01 AM   #9
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On mine 2007 Scepter I have a access panel in the storage bay next to the utility bay for the water pump and there is a valve I have to turn to pump the antifreeze in. I don't know if yours is the same.
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