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Old 03-20-2010, 07:48 PM   #1
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Join Date: Dec 2006
Location: NV
Posts: 4
Sink problems

Sink is coming loose from countertop.
Anyone recommend a good mastic?
Thanks Larry

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Old 03-20-2010, 11:37 PM   #2
Join Date: Jul 2007
Location: Where we park
Posts: 70
You didn't say which sink, but I presume it's the kitchen sink. It would be helpful if you included your year and model of your coach in your signature line also. :-)

On our kitchen sink, the stainless steel sink was separating from the Koradon (or marble like) countertop. I found that WRV never installed retainers at one end of the sink to hold the sink up against the countertop. I just applied a little silicon sealant to the gap at the top edge (under the countertop) that opened up if you pressed down on the sink, and then installed retainers under the sink to pull it up against the countertop.

I couldn't find any "retainers" made for this sink installaton so I cut and bent as required some 90 Degree angle brackets you can get at the hardware store until I had sufficient lift when I screwed the bracket into the wood strip around the bottom of the countertop so that the cut end lifted the sink up to seal against the countertop.

At one end of the sink WRV did install retainers, so you can view those and get an idea as to how this can be done. The only thing that might stop you is the pretzel contortions that may be required to work under the sink. :-(

I can take a picture if you have a problem.

John & Carol Randolph
2005 Alpine 34 FDDS
2006 Jeep Liberty
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Old 03-21-2010, 09:34 PM   #3
Join Date: Oct 2009
Location: Sonora, CA
Posts: 96
Had the same problem. I tried some expensive epoxy and that lasted one trip (well a trip and a half). I then used Gorilla Glue - that did the trick - its lasted several thousand miles so far. I used a jack under the sink to maintain pressure while the glue cured - but you have to be careful because it's easy to separate the counter top from the cabinet - and that's another problem - which I did, but used Gorilla Glue again with weight on the counter top.

Making and using retainers seems like a very good solution - I tried to figure a way to do that but wasn't successful. I think I'll take another look and see if I can add them. My 2001 didn't seem to have any retainers on any end - but maybe I couldn't see them.
2001 Alpine Coach 36'
2013 Jeep Grand Cherokee Towed
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Old 03-22-2010, 05:46 AM   #4
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Join Date: Jan 2004
Location: Summer Rowlett TX (Why?)/Winter Palm Springs CA Two Springs RV Resort http://www.twospringsrv.com/
Posts: 517
[QUOTE=GMDavidson;616937]Had the same problem. I used Gorilla Glue - that did the trick - its lasted several thousand miles so far. I used a jack under the sink to maintain pressure while the glue cured.QUOTE]

I used the jack under the sink technique also but used construction adhesive in a tube from Lowe's. Down side is it smells until it drys.
Basil & Sue Shannon
Former Apex owner (Gary & Renee have it now)
Was Traveling Circus (2 clowns/Sage the Wonder Dog) Tent rotted. Circus folded.
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