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Old 11-16-2014, 09:09 AM   #15
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Sometimes it's not only the low temperature reading that matters, but how long it stays that cold. I think if you anticipate temps in the low 20's or below it's good to open all drain valves to have a steady drip during the night, or while the temps remain low.

Meantime, as above try to plug them with something until you can get them replaced.
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Old 11-17-2014, 09:02 AM   #16
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It apparently was caused by the duration of freezing temperatures (we are on a 1600' mountain) and the fact that we did not switch to fresh water tank only. The permanent repair will be delayed until we get to our dealer, and I will plug the two holes with JB Weld. Unfortunately the weather forecast is not good, so we fill plastic jugs for a while.


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Old 11-17-2014, 11:58 AM   #17
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Will JB Weld adhere to a damp freezing brass surface?


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Old 11-18-2014, 04:23 AM   #18
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I had to tap the stub that remained after the valve broke off and insert a bolt. While this could have been a semi-permanent fix I still had it replaced under warranty
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Old 11-18-2014, 06:18 AM   #19
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Both my brass low point drains broke off this past summer while on a trip to Alaska. They were corroded, never frozen....same result they broke off in my hand when I attempted to tighten them.

I used Rectorseal 200 EP epoxy putty. This is a roll/tube you can get at Home Depot. It was easy to apply and help for 4 months until our trip ended and we stopped at Jackson Center. Even with the drains dripping the epoxy cured in about 15 minutes. In my case, the drains broke at the thread and I pushed the epoxy up into the hole as a plug, let it cure about 5 minutes, then applied more.

Rectorseal is used in many marine applications. Beware that there are many JB Weld varieties and I did not have good luck with them.

FYI, my plastic fresh water drain also broke on this trip and Rectorseal saved the day.

Don't know how to do a permanent repair, wish I did as I am sure it will happen again on our journey to Newfoundland next summer.
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Old 11-18-2014, 12:04 PM   #20
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We own a 2013 23FB flying cloud. It has two low point drain areas. One is under the pull out pantry with the plastic shut off valves located in the heated space under the pantry. The other is located near the fresh water tank drain with the brass shut off valves located outside the belly pan next to the fresh water tank drain. Both the OEM brass valves near the fresh water tank failed (leaked) shortly after we bought the AS. Both were subjected to cold conditions (17 deg F) while the system was pressurized. The brass fittings the valves were attached to cracked and the valves fell off into my hand when I was trying to locate the leak. Both fittings had cracked almost 360 deg. When I had the AS dealer repair the system (under warranty) I had them move the shut off valves up into the heated space below the closet and install valves similar to the valves in the pantry area drain lines. I attached four pictures of the modification. #1 new drain lines near fresh water tank drain #2 closet floor removed to show general area #3 valves are located where light is shining below #4 best picture I could get of the shut off valves. The valves are accessed by either reaching down through floor (small hands help) or removing the maintenance plate under the trailer. We have had this modification for a little over a year and have not had any issues with it. Doug
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Old 11-18-2014, 12:15 PM   #21
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Old 11-18-2014, 02:11 PM   #22
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Hello Doug! Could you send the pictures again. I did not get them.
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Old 11-18-2014, 02:13 PM   #23
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Never mind - here they are!


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Old 11-21-2014, 10:56 AM   #24
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One fitting where the valve was patched with JB Weld & is holding so far, but the other is dripping water. The pump is off & the hose is disconnected. I assumed it was water left in the line and let it drip all night and it has not stopped. Any ideas where this is coming from?


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Old 11-21-2014, 11:03 AM   #25
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May I suggest a long term fix for you, Doug? I would look into installing the same threaded fittings that your pump has and then installing the same brass valves that the AF bypass kits use. That way your valves will be up in the heated area and only "empty" lines will run outside. Although installation in the space you have will be patience testing, the valves are very compact, require only 1/4 turn to open and will be easy to open and close in the tight quarters.
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Old 11-21-2014, 12:10 PM   #26
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I noticed this year when I blew out the lines as I was winterizing that antifreeze came out. Apparently I forgot to open those drains when I dewinterized and I guess the RV antifreeze just sat in those low spots. Obviously we used and drank the water supply and had no taste or other ill effects. I wonder that if you use RV antifreeze when you winterize, it just might be better to not worry about opening those drains when you do your spring flush. It just might protect you if you get caught out in extreme temperatures.

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