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Old 11-04-2015, 12:55 PM   #1
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Where are my low point drains?

Sorry to add to all the other winterizing threads... just wanted to drop this question in, since it is a specific step that is not mentioned much.

So... where are the low point drains (if I have them) on my '08 Wildwood 32BHDS? Admittedly I have not crawled EVERYTHING upside down beneath my rig, but I looked around the other plumbing access locations (tank dump valves on driver side, and fresh water drain on passenger side) and did not see any other drains.

My old motorhome had the low point drains near the rear, just past (underneath) the outside shower hose. I don't have an outside shower on this trailer, so I'm thinking these drains have to be mid-rig somewhere.

My manual is no help (they rarely are)... in the winterizing section, one of the steps just states "Open Low Point Drains" and gives no indication as to where they can be found.

Thanks!
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Old 11-04-2015, 07:37 PM   #2
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Disregard... found 'em! Compressed air winterizing is under way. A nice today and a flashlight will solve a lot of "under the RV" problems.
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Old 11-17-2015, 10:45 AM   #3
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OK, what are these? I see two red & blue tubes underneath (really hidden, didn't know they were there) they are capped, no valves to turn. I've already winterized (although
my freshwater tank now has AF in it! - I'll have to flush out next spring!) or so I thought.
I didn't do anything with these last year (because I didn't know that they existed) and everything seemed to work out.
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Old 11-17-2015, 11:44 AM   #4
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Originally Posted by jas451 View Post
OK, what are these? I see two red & blue tubes underneath (really hidden, didn't know they were there) they are capped, no valves to turn. I've already winterized (although
my freshwater tank now has AF in it! - I'll have to flush out next spring!) or so I thought.
I didn't do anything with these last year (because I didn't know that they existed) and everything seemed to work out.
Those red and blue tubes are your low point drains. You may have gotten lucky last year. If nothing else, you've diluted your AF by not draining all the water out.
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Old 11-17-2015, 01:47 PM   #5
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Right, those capped tubes are the low point drains as I discovered. The water PAST all the faucets (that didn't go down the drain) goes in that low piping, which can and should be drained before winterizing. When you remove the caps, the remaining water will spill out.

Depending on where you live and how cold it gets, I'd recommend draining those low point outlets and running more antifreeze through your system. Or you can go with the compressed air method like I did. Either way, there is probably quite a bit of water left in there, that might freeze and expand up your water lines... causing potential plumbing damage.
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Old 11-17-2015, 09:35 PM   #6
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You may be able to open the drains briefly until pink antifreeze runs then close them. That way you would know they are full of antifreeze not water. That will pull a bit out of the upper system but don't let more than say 1 cup out if you can. That's what I did after finding the drains the dealer didn't find. All pink in there, luckily.
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Old 11-17-2015, 09:37 PM   #7
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You may be able to open the drains briefly until pink antifreeze runs then close them. That way you would know they are full of antifreeze not water. That will pull a bit out of the upper system but don't let more than say 1 cup out if you can. That's what I did after finding the drains the dealer didn't find. All pink in there, luckily.
X2, get the water out and more pink stuff if needed.
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Old 11-18-2015, 10:35 AM   #8
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OK, Maybe that's where all or some of my AF went. I put about 4 gallons in but the pump
wouldn't pull it out (I might've used 6 gallons last year) so I went with the air method.
My neighbor helped me who used to own an RV park and used to winterize alot of rigs as one of the services that he offered. I was also told that the lines being plastic can/will expand to a point with out breaking, and that it is mainly the fixtures that you want to protect. But I will uncap those lines and see what I get. Thanks for all your help!
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Old 11-18-2015, 11:11 AM   #9
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It is ok to let all the antifreeze to drain out. The lines don't have to be full to be protected. Also, if you have tank flushes, make sure you blow those lines out. If water is trapped in your anti-siphon valves, you will be replacing come spring time. Ask me how I know. :
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Old 11-18-2015, 02:21 PM   #10
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Well, ok. Uncapped the two - a very small amount ran out of the blue and seemed to be
pink. An even smaller amount ran out of the red tube, and I don't know if it was AF or just water. In either case not much came out of the two tubes.
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