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03-28-2021, 02:29 PM
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#1
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Senior Member
Join Date: May 2020
Location: Saugatuck
Posts: 102
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Is there a better sealant for tank drip leak?
Last fall noticed a slow drip leak coming from the gallery's gray water tank. Also saw that it had been sealed before and not leaked for the first 3 years we had it. Pulled off the old sealant, drained the tank, let it dry out, cleaned it up with alcohol. Used this White Lightning 3006 Ultra on it. Says is exterior siliconized acrylic latex elastomeric and flexible. Spread it on with a gloved hand, let dry for a day or two and added more. When I winterized the camper saw it dripping again. Is there a better sealant I could use? I did forget to rough up the area with a bit of sandpaper. Think the leak is where the tank is connected to the pipe and it only drips.
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03-28-2021, 02:39 PM
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#2
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,327
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Which connection? If it’s the drain outlet, then you can try tightening the band clamp. If it tight then that drain fitting needs to come out.
Best way is take the blade valve apart, loosen the hand clamp and pull it out. I use a good coating of white plumbers thread seal, and I have also used dicor.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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03-28-2021, 02:45 PM
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#3
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Senior Member
Join Date: May 2020
Location: Saugatuck
Posts: 102
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Quote:
Originally Posted by chuckster57
Which connection? If it’s the drain outlet, then you can try tightening the band clamp. If it tight then that drain fitting needs to come out.
Best way is take the blade valve apart, loosen the hand clamp and pull it out. I use a good coating of white plumbers thread seal, and I have also used dicor.
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It's underneath right where the tank meets the pipe, not at the valve.
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03-28-2021, 03:23 PM
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#4
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,327
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Right at the exit of the tank, right? There is a band clamp you can tighten, right?
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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03-28-2021, 03:50 PM
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#5
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Senior Member
Join Date: May 2020
Location: Saugatuck
Posts: 102
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Quote:
Originally Posted by chuckster57
Right at the exit of the tank, right? There is a band clamp you can tighten, right?
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Don't remember seeing a clamp, will have to get out there and look again. We had a few snow flurries here today, lol. I'll take a picture tomorrow. Thanks.
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03-28-2021, 03:53 PM
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#6
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,327
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Quote:
Originally Posted by KarenK
Don't remember seeing a clamp, will have to get out there and look again. We had a few snow flurries here today, lol. I'll take a picture tomorrow. Thanks.
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No problem, I can wait. Post a pic if you can.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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03-28-2021, 04:07 PM
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#7
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Senior Member
Join Date: Jul 2013
Location: Box Elder
Posts: 2,907
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This is what I used about six years ago to repair a crack in our grey tank and it has been solid since with no leaking. http://plasti-mend.com/cart/index.ph...&product_id=96
__________________
Bob & Becky
2012 3402 Montana
2012 Chevy 2500HD D/A CC
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03-29-2021, 09:45 AM
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#8
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Senior Member
Join Date: May 2020
Location: Saugatuck
Posts: 102
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Quote:
Originally Posted by chuckster57
No problem, I can wait. Post a pic if you can.
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Here's some pictures, took one of the other gray water tank so you can see how they connect on this 2006 rig. And while I was under it anyway took a pic of the extension piece I added to the fresh water tank. Never had to grovel underneath with the 97 Jayco to drain it so didn't want to with this one either.
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03-29-2021, 09:51 AM
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#9
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Senior Member
Join Date: May 2020
Location: Saugatuck
Posts: 102
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Quote:
Originally Posted by bobbecky
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Thanks, nice to know of a good product but my drip is from the joint so a flat patch or tape probably isn't going to work with my issue. I might try more of the stuff I used and take something to smear it on thicker.
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03-29-2021, 10:59 AM
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#10
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,327
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So your drip is where all that pile of sealant is?
If so can you take your repair off and start again using a kit that has 2 part epoxy and fiberglass sheets? I don’t remember the brand, but I have had real good results.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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03-29-2021, 03:16 PM
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#11
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Senior Member
Join Date: May 2018
Location: Folsom
Posts: 367
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My grey tank had a leak at the same spot as yours. After 2 different faied repairs, I replaced the tank. No issues since.
__________________
2002 Montana 3250RL upgraded a bunch
2005 Ford F-250 6.0 Bullet Proofed - SOLD
2017 Ford F350 6.7 Lariet
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03-29-2021, 06:22 PM
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#12
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Senior Member
Join Date: May 2020
Location: Saugatuck
Posts: 102
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Quote:
Originally Posted by chuckster57
So your drip is where all that pile of sealant is?
If so can you take your repair off and start again using a kit that has 2 part epoxy and fiberglass sheets? I don’t remember the brand, but I have had real good results.
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Not sure how easy it will be to get off. Has to get a little warmer before I can work on it. One of the first jobs I had was at Chris Craft, spraying epoxy and rolling out fiberglass for cabin cruiser hulls. Thanks.
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03-29-2021, 06:29 PM
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#13
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,327
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I guess you’ll find out how good your repair adhered.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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04-11-2021, 08:22 AM
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#14
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Junior Member
Join Date: Apr 2018
Location: derry
Posts: 26
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Quote:
Originally Posted by KarenK
Last fall noticed a slow drip leak coming from the gallery's gray water tank. Also saw that it had been sealed before and not leaked for the first 3 years we had it. Pulled off the old sealant, drained the tank, let it dry out, cleaned it up with alcohol. Used this White Lightning 3006 Ultra on it. Says is exterior siliconized acrylic latex elastomeric and flexible. Spread it on with a gloved hand, let dry for a day or two and added more. When I winterized the camper saw it dripping again. Is there a better sealant I could use? I did forget to rough up the area with a bit of sandpaper. Think the leak is where the tank is connected to the pipe and it only drips.
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JB weld plastic repair
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04-11-2021, 08:24 AM
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#15
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Junior Member
Join Date: Sep 2015
Location: Cullman, Al.
Posts: 3
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I don’t know if you’ll have to remove the sealant you have on there now but the best sealant is MarineTex. It will seal gas tanks so a water tank is a no brainer. Here’s a link.
http://marinetex.com/
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04-11-2021, 09:20 AM
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#16
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Member
Join Date: Apr 2013
Location: Tennessee
Posts: 65
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Quote:
Originally Posted by Happycamper2018
JB weld plastic repair
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JB Weld worked for me.
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04-11-2021, 09:42 AM
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#17
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Senior Member
Join Date: May 2019
Location: Cotulla, TX
Posts: 463
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Here are 2 videos kinda related in their repair technique. The first makes a slurry by desolving ABS pieces in acetone. The second bonds two pieces of ABS butted together using MEK and a bridge piece of ABS. Both are employing a solvent to soften the ABS. I kinda liked the first method using the slurry. One of the addendums the author employed to strengthen the repair was "fly screen" layered in the repair with a base coat of slurry below then covered immediately with more slurry. What I liked using a solvent process over an epoxy, is many adhesives will not bond well to the smooth ABS. Best of luck with your project!
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05-16-2021, 06:08 PM
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#18
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Senior Member
Join Date: May 2020
Location: Saugatuck
Posts: 102
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Looks like the second coat I put on last week has stopped the leak. Made sure it was clean and dry, used a small piece of food box cardboard to spread another coat over my first attempt. Hope it holds up to driving down the road. Next up, check for loose wiring on the bath fan, after 2 yrs of running when it wants too it has decided it doesn't want to anymore.
__________________
Karen & Darc 32yrs
2007 Crossroads Cruiser 28RL
2019 2500 HD Duramax
Past
2006 Springdale 280 FWIKL-GL
1997 Jayco 253
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