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12-10-2020, 05:35 PM
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#1
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Rivet Master
2019 27' Globetrotter
Litchfield Park
, Arizona
Join Date: Jan 2013
Posts: 548
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Rear Bumper Compartment Fills With Water
Hi all. The rear bumper compartment on our trailer gets a lot of water in it when it rains and the water does not drain out. The bottom of the compartment appears to be a piece of sheet metal and it is beginning to rust. I was thinking about just drilling a couple of holes in it so it could drain.
Has anyone else had this problem and what did you do to fix it?
Also, is there anything I can put on the compartment door/flap to make it more weather tight?
Just curious what others have done to address this problem.
Thanks,
Steve
__________________
Steve Jones
2019 Globetrotter 27 FB
2018 Chevy Silverado 2500 4WD LT
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12-10-2020, 05:56 PM
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#2
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"Cloudsplitter"
2003 25' Classic
Houstatlantavegas
, Malebolgia
Join Date: Jun 2007
Posts: 19,977
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YEP...
I drilled a number of 1/2' holes in our 'bumper drawer' floor, then got one of my largest whackers and gave the floor some tilt to help drainage. Marine drainage tiles keep it dry.
POI...it's in all storage compartments.
Bob
🇺🇸
__________________
"You don't know where you've been until you leave, enjoy life" RLC
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12-10-2020, 08:04 PM
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#3
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Rivet Master
2017 25' Flying Cloud
Fayetteville
, Arkansas
Join Date: Aug 2007
Posts: 601
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Robert, you cut a bunch of half foot (1/2’) holes? Seems like a 6” hole is a bit large. Do you loose things out of those holes?
__________________
FishByFly
because I catch fish on a fly...
2017 25' Safari FBQ - “Fly Fish Inn”
2023 F150 XLT
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12-11-2020, 09:54 AM
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#4
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Rivet Master
2019 27' Globetrotter
Litchfield Park
, Arizona
Join Date: Jan 2013
Posts: 548
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Quote:
Originally Posted by ROBERT CROSS
YEP...
I drilled a number of 1/2' holes in our 'bumper drawer' floor, then got one of my largest whackers and gave the floor some tilt to help drainage. Marine drainage tiles keep it dry.
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Thanks Bob. Are those tiles easy to cut?
Thanks,
Steve
__________________
Steve Jones
2019 Globetrotter 27 FB
2018 Chevy Silverado 2500 4WD LT
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12-12-2020, 05:33 AM
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#5
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Rivet Master
2017 27' Flying Cloud
Fort Worth
, Texas
Join Date: Sep 2017
Posts: 773
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That department is not waterproof and should have drain holes to allow the water out. They either did not drill holes in yours or they are blocked.
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12-12-2020, 06:58 AM
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#6
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Rivet Master
2019 25' Flying Cloud
Houston
, Texas
Join Date: Jan 2019
Posts: 996
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I drilled holes in mine and have been trying to find something to aid drainage. I will look for those marine tiles.
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12-12-2020, 07:02 AM
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#7
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"Cloudsplitter"
2003 25' Classic
Houstatlantavegas
, Malebolgia
Join Date: Jun 2007
Posts: 19,977
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Quote:
Originally Posted by stevejones
Thanks Bob. Are those tiles easy to cut?
Thanks,
Steve
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oop's 1/2" holes. 4 across the rear open edge, with the tongue slightly up is stays very dry.
The 'marine' tiles I linked above are very flexible easier to cut and shape than the grey tiles you see in the side storage and rear 'trunk'.
I discovered the marine tiles when I did the anchor & fender compartments in the Allison. 👍
Bob
🇺🇸
__________________
"You don't know where you've been until you leave, enjoy life" RLC
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12-12-2020, 11:06 AM
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#8
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2 Rivet Member
2019 23' Flying Cloud
Tampa
, Florida
Join Date: Jun 2019
Posts: 26
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Water in rear bumper!
Yup, everything in our bumper gets wet and stays wet. Our sheet metal is rusting also. The bumper corrosion is just one of many items rusting under our 2019 23 FB. The under carriage looks like its been spending winters in the salt in Michigan. It's never been off pavement. Dealer and AS refuse to address it.
I've also been tempted to drill drain holes in the bottom. The rubber mat that came with the trailer traps the water underneath and stays wet. The corrugated rubber mats are a good idea.
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12-12-2020, 11:21 AM
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#9
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Master of Universe
2008 25' Safari FB SE
Grand Junction
, Colorado
Join Date: Sep 2007
Posts: 12,694
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I think they used to drill weep holes in the bottom of the bumper compartment and that's all you need to do. I'd make them 3/16" and drill about four of them. I never had a problem with water in our 2008 and it did have holes.
Some people may be confused about whether you meant the compartment in the bumper or those in the trailer itself. Sometimes the latter leak because of poor door seals. They should be sprayed with silicone annually to keep the rubber pliable. I think you mean the bumper and not the trailer body. I would not drill holes in the body compartments as water would possibly drain into the belly pain or bugs could climb up into the living areas.
__________________
Gene
The Airstream is sold; a 2016 Nash 24M replaced it.
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12-12-2020, 11:23 AM
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#10
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Rivet Master
2022 25' Flying Cloud
NCR
, Ontario
Join Date: Feb 2017
Posts: 3,077
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just drilled holes in the 4 corners and two more 1/3 in from the edge
no issues and no water collects
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12-12-2020, 12:47 PM
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#11
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Rivet Master
2016 28' International
Trois-Rivieres
, Quebec
Join Date: Jun 2018
Posts: 692
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Drilled some drain holes where the water would pool, no more bird bath in the bumper cabinet!
__________________
2016 International Signature CCD, RBQ, Dual A/C, 28'
2018 GMC Sierra SLE 2500HD, 4x4, Crew Cab, Duramax Diesel, Leer cap
Lift kit, 16" wheels, Michelin Agilis CC LT
DIY Solar: 500W Renogy panels, AM Solar hdw, Blue Sky MPPT controller, 470ah Rolls battery bank, 2000W Renogy inverter.
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12-12-2020, 01:05 PM
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#12
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2 Rivet Member
2020 27' International
Neptune Beach
, Florida
Join Date: Nov 2019
Posts: 35
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Wet
Quote:
Originally Posted by Skyhook
Yup, everything in our bumper gets wet and stays wet. Our sheet metal is rusting also. The bumper corrosion is just one of many items rusting under our 2019 23 FB. The under carriage looks like its been spending winters in the salt in Michigan. It's never been off pavement. Dealer and AS refuse to address it.
I've also been tempted to drill drain holes in the bottom. The rubber mat that came with the trailer traps the water underneath and stays wet. The corrugated rubber mats are a good idea.
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How about spraying it with flex seal or rust oleum paint to protect it ?
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12-12-2020, 01:15 PM
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#13
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"Cloudsplitter"
2003 25' Classic
Houstatlantavegas
, Malebolgia
Join Date: Jun 2007
Posts: 19,977
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POI...just to be clear.
The Classic bumper has a slide out tray.
That tray has the marine tile, the "trunk" along with all storage compartments have a much less flexible tile that required a more aggressive cutting method.
Bob
🇺🇸
__________________
"You don't know where you've been until you leave, enjoy life" RLC
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12-12-2020, 01:17 PM
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#14
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Rivet Master
2014 25' FB Eddie Bauer
Vero Beach
, Florida
Join Date: Sep 2014
Posts: 693
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Had the same problem. The Eddie Bauer bumper box is slightly different from non-hatch models, since the bumper is intended as a step, but the solution I used prob applies to others.
By the time I found this, the rust had nearly destroyed the vertical cross member that sits just forward of the bumper itself. That plate is black painted sheet steel. It didn’t have a chance here near the ocean. The floor of the bumper box was two pieces is sheet metal. The upper aluminum plate literally secured to the lower sheet steel with two-sided foam tape. Drilling through those two pieces would have been easy, but likely would have filled the void between then with water.
I pulled the bumper and ordered a new rear cross member through Colonial’s parts department. I had to clean some significant rust off the frame on one side and I treated both sides with POR 10. I ordered a custom cut piece of 1/8” aluminum diamond plate to fit where the two floor pieces had been. I drilled 1/2” drain holes in it and glued it in with adhesive sealant caulk.
So far, so good. On my trailer, leaving that untreated would eventually have rusted through the tail of the curbside frame member.
This area should be inspected from below and from inside the bumper box on a regular basis, IMO.
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12-13-2020, 08:21 AM
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#15
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Rivet Master
2019 27' Globetrotter
Litchfield Park
, Arizona
Join Date: Jan 2013
Posts: 548
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Quote:
Originally Posted by Gene
Some people may be confused about whether you meant the compartment in the bumper or those in the trailer itself.
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Title of thread is "Rear Bumper Compartment Fills With Water"
Text of OP is "The rear bumper compartment..."
As there is only one rear bumper not sure why anyone would be confused about what I meant but apparently someone didn't bother to read the original post and just jumped in the middle. Happens a lot I guess.
Steve
__________________
Steve Jones
2019 Globetrotter 27 FB
2018 Chevy Silverado 2500 4WD LT
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12-13-2020, 11:35 AM
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#16
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Master of Universe
2008 25' Safari FB SE
Grand Junction
, Colorado
Join Date: Sep 2007
Posts: 12,694
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Just wanted to make sure no one was confusing compartments. Things like that happen all the time and people don't read carefully or come in the middle. Carry on....
__________________
Gene
The Airstream is sold; a 2016 Nash 24M replaced it.
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12-13-2020, 02:18 PM
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#17
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"Cloudsplitter"
2003 25' Classic
Houstatlantavegas
, Malebolgia
Join Date: Jun 2007
Posts: 19,977
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We have a rear bumper & a rear bumper drawer...
Bob
🇺🇸
__________________
"You don't know where you've been until you leave, enjoy life" RLC
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12-16-2020, 10:35 AM
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#18
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Rivet Master
2013 31' Classic
billings
, Montana
Join Date: Feb 2010
Posts: 3,570
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Quote:
Originally Posted by Skyhook
Yup, everything in our bumper gets wet and stays wet. Our sheet metal is rusting also. The bumper corrosion is just one of many items rusting under our 2019 23 FB. The under carriage looks like its been spending winters in the salt in Michigan. It's never been off pavement. Dealer and AS refuse to address it.
I've also been tempted to drill drain holes in the bottom. The rubber mat that came with the trailer traps the water underneath and stays wet. The corrugated rubber mats are a good idea.
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..rubber mat holds the moisture in..do away with it.. drill a couple holes...do not use carpet to replace the rubber mat..it is worse
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12-16-2020, 10:42 AM
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#19
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1 Rivet Member
2001 25' Safari
Asheboro
, North Carolina
Join Date: Jul 2016
Posts: 16
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There is an automotive product called Por 15, it’s black paint like, and keeps metal from rusting. Lasts several years. We have leaks, but not in the bumper compartment!
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12-16-2020, 11:28 AM
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#20
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Rivet Master
2007 30' Classic
Oswego
, Illinois
Join Date: Jul 2010
Posts: 13,655
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Quote:
Originally Posted by shopie
There is an automotive product called Por 15, it’s black paint like, and keeps metal from rusting. Lasts several years. We have leaks, but not in the bumper compartment!
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In the past I tried rustoleum and rattle can bed liner. No go. Galvanized is very particular about coatings which will stick. A year ago, I prepped and prepped and used por 15. So far, so good. Prepping included sanding, vinegar soak, por 15 cleaner and metal prep (twice), then two coats.of.por 15 paint.
DO NOT skimp on the prepping!!!!
Somehow, I didn't take a.finished pic.....but its black and shiny.
__________________
-Rich-
"If the women don't find you handsome, they should at least find you handy." - Red Green
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