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Old 07-04-2014, 08:53 AM   #99
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Doing it!
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Old 07-04-2014, 09:55 AM   #100
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Keep us informed on The Adventures of the PharmGeek Squad.

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Old 07-04-2014, 09:57 AM   #101
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That's catchy lol
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Old 07-04-2014, 11:56 AM   #102
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Pharm...not sure if the "doing it" referred to alarms, but here's a pic anyway of my alarm/rag setup. I super glued the rag to the pad that the probes stick out of being careful to keep the glue off the rag area making contact with the probes so as not to interfere with wicking.

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Old 07-04-2014, 11:48 PM   #103
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Rich, the five leaks I have found all came down between the exterior and interior walls and wetted the plywood subfloor but not the top of the vinyl. I found them using the same Sonin meter as the o.p. by probing through the vinyl around the perimeter of the trailer. How would the moisture alarms contact moisture under the vinyl?

Our trailer was delivered with no leaks, but they developed over our 2 1/2 years of extensive travel, at different times. I probe the floor perimeter regularly, at least quarterly. Suspect entry points are at the entrance door, under windows not adjusted tight enough, and especially in the floor under the awning support arm mounting brackets (which are installed after the leak test at the factory) because the awning(s) act like rain gutters directing water to the ends and down over the awning support arms.

Do not direct high water pressure from a hose onto the sides of the trailer to search for leaks; there is a good chance you will create new ones. With pressure, you could probably force water through most of the door, storage hatch, and window seals. Certainly the fridge access hatches. Once the water gets into the plywood floor under the vinyl, it's difficult to dry out.

These various moisture meters or alarms should be part of the Airstream tool kit and used regularly to ensure fresh leaks are found and sealed before they cause damage from floor rot.
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Old 07-05-2014, 12:57 AM   #104
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One of the biggest issues I found trying to dry the floor is that my 2008 has reflectix insulation under the flooring in a single sheet. Once water gets in, it can't get out. One should open the bellypan and slice the insulation in areas that are prone to get wet so that moisture can exit. I pulled all the reflectix out of the rear of my trailer and installed foam insulation blocked a half inch away from the flooring so it can breathe. As an old harley mechanic told me once when I asked him how to seal my turnsignal lenses once and for all: "No matter what you do, water WILL get in. The solution is to ensure that there is a way for it to get out. Drilling a small weep holes at the bottom of the turnsignal lens was the answer.
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Old 07-05-2014, 07:21 AM   #105
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Doug, Obviously you can't in areas outside of nooks, crannies and cabinets. I looked for creative ways to permanently install. Most leaks between the skins find their way to the interior floor through the breaks in the c-channel at the ends of the curved sections of the corner panels...and run from there. (not all. I know). These are the areas where I install the "rag" alarms. Under the sofa and carpet in front and under the removable rubber floor in the rear. Areas that are exposed and can't have an install, I probe with a meter when I have reason to be suspicious.
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Old 07-06-2014, 08:42 AM   #106
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I'm kinda confused by the rag setup...need to revisit

The rag is installed under the flooring in that area and probe touches exposed edge of rag? Do you have a pick of it installed?

I'm not sure about the insulation concern - guess I'll have dealer look into that when I bring it in
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Old 07-06-2014, 09:17 AM   #107
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Quote:
Originally Posted by PharmGeek View Post
I'm kinda confused by the rag setup...need to revisit

The rag is installed under the flooring in that area and probe touches exposed edge of rag? Do you have a pick of it installed?

I'm not sure about the insulation concern - guess I'll have dealer look into that when I bring it in
Sure, It's kind hard to get to with the phone, so some explanation will be needed;
Again the c-channel is a water highway. It is broken only fore and aft of each wheel well, the entry door. and at the ends of each curved corner section. So far in my experience, if there is a leak water WILL find its way to the corner breaks. I've never had any moisture at the wheel wells and I'm not sure why not, but I'll take it. When I've had door/front side window leaks, the water has run to the corner c-channel breaks. So, I have 4 of the rag setups, with Doberman alarms:

Here, either side of the rear trunk compartment door. I've had water here a lot, but think I found the upper awning mount was the biggest culprit.

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The rag is placed below a removable rubber floor I installed in place of the OE carpet, which was always wet.

Here, the rag setup is on both outside edges of the battery boxes where there are breaks in the front panel c-channel AND access to the c-channel from cutouts in the inner skin. The rag is stuffed partly under the carpet and partly into the c-channel floor

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In addition, I have several of these, which just sit on 4 probes, but need bare wood to be accurate. I have them in areas where there is a void in floor covering and are likely leak locations. This one is under the water heater.

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Does that help?
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Old 07-06-2014, 11:05 AM   #108
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Pharm, I just had a thought. Show us a pic of your floor to wall molding that hides the edges of the vinyl. You could remove the molding and lay COTTON string (maybe 1/16" diameter??) in the joint and replace the molding in suspect areas. Run the string under counters, cabinets, couches, etc. Then attach the end to an alarm hidden in these areas. The string would be your wick.

I have 3 other areas where I've had moisture in the past that I may try this on.
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Old 07-06-2014, 12:09 PM   #109
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That's an excellent idea really - I'll do photos later
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Old 07-06-2014, 02:03 PM   #110
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I may still have more questions - just busy today
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Old 07-09-2014, 04:29 PM   #111
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I just tried a mod to the Doberman alarm that I used in a carpeted area, but would work for vinyl as well. I took the probe assembly out of the holder and slipped a sewing needle up into the rubber mount (eye end). I then wrapped braided fishing line around the probe and the needle, tied it off and put a drop of super glue on the line. (This is a methodology brought over from my RC helicopter frame repair technique) I would have soldered, but I am afraid the whole assembly would melt.
I now have two long needle sharp probes down into the wood.

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Old 07-09-2014, 09:46 PM   #112
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Where do you get these alarms and sensors ?
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