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PostPosted: Sat May 17, 2014 1:07 pm 
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Joined: Thu Jun 30, 2011 3:47 am
Posts: 368
Location: Simi Valley
OR Year: 2014
OR Model: 349RLS
Member ID: ORF-0108
Question for any other members who own "RDS" fuel tanks. I'm getting fuel coming out of, what I believe is a "vent tube" in the RDS fuel/toolbox I just installed. Was wondering if any one else who owns an "RDS", or any other brand of aux fuel tank, for that matter, may have experienced a similar situation.

It may just be a situation where when the tank is completely full, which I just did for the first time, that some of the fuel sloshing around inside may force it's way through the vent tube.... First time I've ever had one of these units, so I thought I'd ask.

The amount of fuel is not much, but the vent tube and the cabinet floor will be slick from the presence of diesel fuel. There's no fuel "pooling" or lying on the cabinet floor, but it is damp...

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PostPosted: Sat May 17, 2014 2:30 pm 
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Joined: Mon Jul 04, 2011 9:01 am
Posts: 3712
Location: Ephrata PA
OR Year: 2009
OR Model: 337RLS
Member ID: ORF-0136
It is most likely coming out that brass fitting.
Take some tubing and clamp it to the fitting and run it longer/higher so the fuel does not come out.
You may also want to put a filter on the other end of the tubing to keep "things' out of the tank.

Did you do the install?
How did it go?


Dennis (Doc) & Elaine (mrsdoc) Dougherty
2014 Ram 3500 SRW 4x4, Laramie MegaCab, Cummins HO, Aisin 6 speed Trans, 385HP/850 lb-ft of torque, 3.42,
2018 3X388RKS Traded 2009 OR 337RLS SR#160
PullRite SuperGlide, 46gal Aux fuel tank

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PostPosted: Sat May 17, 2014 3:19 pm 

Joined: Sun Oct 23, 2011 11:16 am
Posts: 6315
Location: Spring/Houston, TX area
OR Year: 2017
OR Model: LF318
Member ID: ORF-0756
Maybe, sounds like you over filled it.

As a rule, fill to 80% of full capacity. Got to leave an "air gap" of fluid level to top of the tank.

Cheers, and Laissez les bon temps rouler
Amy & Mickey Cotham
Retired Oil Field La. Cajun
2017 LF318 Light, w/modifications, TST 510 TPMS
2011 F-250 Diesel, 45 gal Aux Fuel Tank w/transfer SOV

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PostPosted: Sat May 17, 2014 9:22 pm 
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Joined: Thu Jan 24, 2013 11:27 pm
Posts: 1515
Location: Catlett, VA when not on the road
OR Year: 2011
OR Model: H320MPR
Member ID: ORF-2337
I have the same 60 gal tank and tool box combo, just in the transfer tank configuration , so the filler and vent is exposed. It has happened to me when I've filled it to the top of the tank then parked on uneven ground. I put a tube on the vent and ran it out of the truck bed, so no spill in the truck, just on the driveway. So I avoid filling it all the way up to leave a little head space, like Mickey. If I'm on the road and pulling the trailer, then I will fill it up, knowing that I'm on level ground and that I'll burn it down quickly.
So X2 on what Doc and Mickey said, add a vent tube, and put a loop in it to help keep the fuel from venting out and leave a little extra space, unless you are hitting the road.

One final comment, we really liked the range the aux tank gave us during our trip to Texas, then Florida. We could shop for the lowest prices, and avoid any overly challenging gas stations.

Ron & Nancy
Catlett, VA
Piper - Golden Retriever
Jack - Cavalier King Charles Spaniel
2011 OR 320 MPR
2012 Ram 3500 DRW
1975 Cessna 172M - sold 3/12/14 :-(

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