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Old 02-23-2015, 07:39 PM   #1
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Question Got Leak? (Trying to find source of water damage)

The Coles notes version first;

We noticed a soft spot in the floor of our Rockwood Mini Lite 1809 last summer. Yesterday was the day to finally start looking into it, and low and behold we have water damage.

The long way round the story:

- We bought the trailer used almost exactly one year ago. It's former owners had it parked for most of it's life at an rv park in the lower mainland, beside a river. (read: lots of water around, lots of rain, lots of moisture)
- We live in a relatively dry area, we don't get much rain, and only had snow on the roof for a couple weeks (max) this past winter). I also don't recall pulling it in the rain at all last year.
- Their is a nick out of the flooring in the floor (coincidentally or not) right above where the water damage is
- I pulled the flooring and found what I've documented in the pictures below.
- I can't (easily) tell where the water is coming from. I've been on the roof and cannot see any obvious visual signs, I've checked around all the windows and cannot see any obvious visual signs, I had pulled the cabinet above the stove last year to replace the stereo and noticed nothing in the way of water damage, I pulled the panel above the fridge last year to run tv wiring and noticed nothing, I pulled the panel behind the stove and looked down in behind and could not see any signs of water damage. I looked behind the fronts of the cabinets to see if their were any leak, drip, water routing stains or marks, and their is nothing.
- their is one gas line that runs close to edge of the damage from below the trailer. the conduit is sealed below, but their is space between the conduit and the gas line (enough to easily slide a cable tie down and out the bottom), when I peel back the conduit from the gas line under the trailer, it has green stains on it, as if water had made it's way into the conduit. (However, as the picture shows their is no visible water damage against the upper part of the gas line conduit)
- the fiberglass looking woven black membrane that covers the entire bottom of the trailer seems to have an air pocket (seperation, delamination, aggravation???) right below where the water damage is.
- I've looked all up under the sink, the drain pipe, the waer lines, and cannot see any signs of leaks or drips
- I removed the cheap pieces of wood that hide the guts behind the lower cupboards - and the one under the sink shows signs of water damage along it's bottom edge, but no other signs of actually where it is coming from. One of the screws that screws this panel down into the floor is also rusted, but only one, and neither of the other two holding the panel in the next cupboard show any signs of rust

Question time:

It seems much more likely that water is going to come in and down from above, right?
Is it feasible to think that water could somehow draw up the gas line from outside the bottom of the trailer?
Is it feasible that water could be coming in from somewhere, filling into the space between that delaminated outside membrane underneath, then working/wicking it's way up into the trialer floor?
When I pulled the flooring up, the wood that is bonded to the styrofoam was still slighlty damp. Is it possible that the leak occured over a year ago (when the previous owners had it located in the lower main-rain-land) and that the leak and associated moisture and rot has been able to exist on it's own for the past year, without losing all it's moisture?
I'm not certain, but I wonder if the little nick in the floor has any relationship to the water damage? It is not located directly over the worst part of the damage, but within the damaged area.
I opened the windows, andcranked the fan for a whole day and the moisture feeling in the styrofoam dried up, for what that is worth?

When can I have a bourbon? Should I start now, or wait until I've dealt with this issue?

Sorry for all the information, I figured I would lay it all out in hope it may help.
My main concern is finding the source of the damage. The damage that has been done, is now done, and I will have to repair it. I just want to make sure it does not continue.

Pictures to follow.
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Old 02-23-2015, 07:42 PM   #2
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Old 02-25-2015, 07:26 AM   #3
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I feel your pain. I had a recent leak as well and it took a while to locate. I had a very slight leak on the flex piping that hooks to the bathroom faucet (under the tub). The water damage occurred almost 10' away. Basically the water was running down the bottom side of the pex piping to a low drip point. From your pictures, it looks like the leak could be originating from the joint in the flooring. Possible window or siding leak? Can you post pictures from outside trailer as well and point out where the leak is in relation to the pic?
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Old 02-25-2015, 10:52 AM   #4
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Do you have any tanks underneath the trailer near the damage?
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Old 02-25-2015, 11:15 AM   #5
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Got Leak? (Trying to find source of water damage)

No tanks underneath close by. The only thing of significance under the trailer close by, is the gas line running up into the cupboard

Here are a couple pictures from outside the area above the damage. Their is one window and a vent. The sealant around the window could be suspect, but I'm not sure. I am going to have to pull the window to look inside I guess.



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Old 02-25-2015, 11:23 AM   #6
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on the First picture above the plug, is that the reefer panel? if so, is the reefer draining onto the floor? just a question as I am no expert
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Old 02-25-2015, 11:37 AM   #7
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I don't see the drain line coming from the refer cover. That might be the problem.
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Old 02-25-2015, 11:52 AM   #8
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Looking at your floorplan online, and recognizing that leak is right below your range, and seeing the sidewall photos of the location I'm going to give 5 options to consider: 1) condensation from the fridge because your drain is apparently not "peeping out" of the vent cover as it should; 2) your roof vent for the fridge has stale lap sealant and water is running down during rain - lap sealant does need to be refreshed; 3) the stove hood vent caulking has failed - had this on my 21ss but caught it fast and found factory only used caulk and no butyl tape under it; 4) window needs to be resealed; and, 5) your outside shower is obviously under the same cabinet and the plumbing fittings commonly loosen and drip.
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Old 02-25-2015, 02:14 PM   #9
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Quote:
Originally Posted by Mountndream View Post
on the First picture above the plug, is that the reefer panel? if so, is the reefer draining onto the floor? just a question as I am no expert
Quote:
Originally Posted by dkelly View Post
I don't see the drain line coming from the refer cover. That might be the problem.
Quote:
Originally Posted by geotex1 View Post
Looking at your floorplan online, and recognizing that leak is right below your range, and seeing the sidewall photos of the location I'm going to give 5 options to consider: 1) condensation from the fridge because your drain is apparently not "peeping out" of the vent cover as it should; 2) your roof vent for the fridge has stale lap sealant and water is running down during rain - lap sealant does need to be refreshed; 3) the stove hood vent caulking has failed - had this on my 21ss but caught it fast and found factory only used caulk and no butyl tape under it; 4) window needs to be resealed; and, 5) your outside shower is obviously under the same cabinet and the plumbing fittings commonly loosen and drip.

Leak is below the range, the reefer is off to the left (as geotex1) mentioned.
I will check all the suggestions this Sunday.
Will the drain from the reefer be easy to spot and/or locate?
Thanks for the help so far everyone.
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Old 02-25-2015, 03:02 PM   #10
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Quote:
Originally Posted by geotex1 View Post
Looking at your floorplan online, and recognizing that leak is right below your range, and seeing the sidewall photos of the location I'm going to give 5 options to consider: 1) condensation from the fridge because your drain is apparently not "peeping out" of the vent cover as it should; 2) your roof vent for the fridge has stale lap sealant and water is running down during rain - lap sealant does need to be refreshed; 3) the stove hood vent caulking has failed - had this on my 21ss but caught it fast and found factory only used caulk and no butyl tape under it; 4) window needs to be resealed; and, 5) your outside shower is obviously under the same cabinet and the plumbing fittings commonly loosen and drip.
All very good suggestions. From looking at the picture, it looks like the water stain does not extend to the exterior of the camper. Is that the case? If you can get your hands on a moisture meter, might be able to determine the extent of the water damage if it is still wet.

If the water stain / damage does not extend to the exterior start working your way up from the stain and see if you can determine where or how the water is dripping. Could be the shower or may be transferring from the exterior wall above the floor.

I don' believe the gas line is the problem. Water usually doesn't run uphill.
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