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Old 08-01-2015, 09:09 PM   #1
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Starting my floor repair project, Blast 150 MPH

the soft spots on the rear corners are getting bad, so I thought I'd start and finish the rear only between camping trips. the soft spots at my side door is going to be a real big job because I will need to remove the kitchen to fix that area. I'm going to reuse the flooring for this fix. I cut the flooring near the edges and pulled it up and started pulling up the wet insulation and plywood.

the right side was the worse. even the lower rear side wall will need to be replaced but that project will involve taking the siding and wheel wells off.

I still do not know where the water is coming from. I have no leaks that I can see.














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Old 08-01-2015, 09:18 PM   #2
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tomorrow before I finish the job, I'm going to raise the front of the trailer high and run the shower, sink and toilet, one at time and see if I can get any water to run to the rear.
the black liner under the insulation is lower between supports and will allow water to run all over the place. two foot from the rear in the center of floor I can stick my hand under the floor and the insulation is damp. I was wringing wet on the right rear.
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Old 08-02-2015, 05:08 PM   #3
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do a search under "blast 150". coachmen chris did extensive floor repairs on his...

fresh water fill and shower trap are 2 common places for leaks
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Old 08-02-2015, 05:45 PM   #4
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do a search under "blast 150". coachmen chris did extensive floor repairs on his...

fresh water fill and shower trap are 2 common places for leaks
Yes, I got most of my motivation from Chris' repair thread. My fresh water fill is fine but I do have a leak that I just found. the hot and cold are dripping and they drip right into the hole where the shower drain is. thats my next fix. with the tarp under the floor, water can travel anywhere.
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Old 08-02-2015, 05:56 PM   #5
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and ....the hole where the drain is, is where the water got between the vinyl and the substrate and migrated down the coach to destroy your floor...
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Old 08-02-2015, 06:29 PM   #6
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and ....the hole where the drain is, is where the water got between the vinyl and the substrate and migrated down the coach to destroy your floor...
yes, I've looked at the shower connections many times but never with the water running.

you can see the drip in the picture.

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Old 08-02-2015, 06:30 PM   #7
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this is how far I got today. I did cut the plywood and sized it up. More tomorrow after work
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Old 08-03-2015, 07:29 PM   #8
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Wow! This came out better than I thought. And at a low cost. Under 25 bucks.
I had a 2 x 8 piece of plywood left over from a home roofing job.
I bought two tubes of chalk, some aluminum trim for at the ramp door entrance and two 2 x 2 x 8’s for supports. I used some 3M adhesive that I had left over from recovering a Motorcycle seat for gluing the floor back down. And a rolling pin to flatten the floor out.
Whole job took about 25 hours and a case of DaSani water.
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Old 08-03-2015, 07:56 PM   #9
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Have you considered that maybe it is coming in from the top of the garage door when it rains?

Spray a hose up there and have someone inside when you do. Have them watch for drips. Stand on top and spray water at the roof in that area and likewise watch.

Water can come down inside walls and then when it hits a floor will spread out.
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Old 08-03-2015, 08:17 PM   #10
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Have you considered that maybe it is coming in from the top of the garage door when it rains?

Spray a hose up there and have someone inside when you do. Have them watch for drips. Stand on top and spray water at the roof in that area and likewise watch.

Water can come down inside walls and then when it hits a floor will spread out.
I've been inside during big storms and after big storms and never had any water coming from the ramp door. inside floor always dry.

It's been a mystery for a few years now. three years ago I first noticed a soft spot at the side door. that year I chalked everything and even added 4" eternal bond tape to every roof seam and over the gutters.

when I opened up the RV this year I was running water for about an hour to flush the fresh tank and hot water heater. I had some water running from under my sink cabinet (where my hot water heater is) across floor to the fridge. I opened the cabinet under the sink and had a puddle. I cleaned it up and could not find any leaks. I've tried to do it again and couldn't find any leaks. I've been on four trips this year and not a drop of water under sink.

my last trip my shower started leaking inside where the hot and cold meet and the shower head hose connects. I did look on the feed side and didn't see any water leaking. I rechecked this area with the water running and found a drip. picture is above in post #6. this leaks right to the opening in the floor where the tub drain and sink drains meet and go through the floor. and the tarp lets the water travel everywhere. It only leaks when shower is on. I had the pump on all day yesterday and not a drop at the shower feed
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