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Fueling station/Generator Gas Tanks/Filling Question

GlampinLife
Explorer
Explorer
I've got a 2016 Jayco Seismic Wave 310W that has 2 gas tanks (generator and fueling station). I've only used it once and noticed when I filled up both tanks how long it took because you could only pump the gas so fast without it turning off like the tank was full. I didn't think of anything at the time other than you couldn't fill it up fast (like you can a car).

This past weekend I went to use my new Gastapper Transfer Pump to transfer fuel from the generator tank to the fuel station to empty both tanks, I use the fuel station for my lawn mowers and wife's car. I just don't like the idea of the fuel sitting in those tanks for a month or longer.

So as I went to feed the hose in the tank, it wouldn't go in very far. I looked in and there are green balls in the neck, just past where the gas nozzle would reach. I can't find much info about this... what's it for, the need and can it be removed.

You can kind of see it in this picture I took:
2016 Jayco Seismic Wave 310
2011 Ford F-250 Lariat 6.7 Diesel
Andersen Aluminum Ultimate 5th Wheel Connection
2016 E-Z-GO Express S4 High Output
Our Blog: www.glampin.life
YouTube: www.youtube.com/GlampinLife
19 REPLIES 19

GlampinLife
Explorer
Explorer
momentum rv wrote:
MMayleben wrote:
Thanks for the feedback!

The little bit that I've been able to find, that ball is spring loaded (I think). It's hard to tell in that picture but it looks like a green ball.

It does keep me from putting the vacuum hose into the tank to drain the tank, so that's the problem that caused me to notice all this. Also it makes for super slow fill ups.

Should I just not be concerned about gas staying in the tank for a few months or more? I was just worried about it going bad and gumming things up or causing build up.


Put Sta-bil in it and don't worry about it. Has worked for me the last 6 years.


Awesome, I'm glad I asked you guys 🙂
2016 Jayco Seismic Wave 310
2011 Ford F-250 Lariat 6.7 Diesel
Andersen Aluminum Ultimate 5th Wheel Connection
2016 E-Z-GO Express S4 High Output
Our Blog: www.glampin.life
YouTube: www.youtube.com/GlampinLife

momentum_rv
Explorer
Explorer
MMayleben wrote:
Thanks for the feedback!

The little bit that I've been able to find, that ball is spring loaded (I think). It's hard to tell in that picture but it looks like a green ball.

It does keep me from putting the vacuum hose into the tank to drain the tank, so that's the problem that caused me to notice all this. Also it makes for super slow fill ups.

Should I just not be concerned about gas staying in the tank for a few months or more? I was just worried about it going bad and gumming things up or causing build up.


Put Sta-bil in it and don't worry about it. Has worked for me the last 6 years.
2015 Grand Design Momentum 385TH
2015 Ford F-350 DRW 4x4 Lariat

GlampinLife
Explorer
Explorer
Thanks for the feedback!

The little bit that I've been able to find, that ball is spring loaded (I think). It's hard to tell in that picture but it looks like a green ball.

It does keep me from putting the vacuum hose into the tank to drain the tank, so that's the problem that caused me to notice all this. Also it makes for super slow fill ups.

Should I just not be concerned about gas staying in the tank for a few months or more? I was just worried about it going bad and gumming things up or causing build up.
2016 Jayco Seismic Wave 310
2011 Ford F-250 Lariat 6.7 Diesel
Andersen Aluminum Ultimate 5th Wheel Connection
2016 E-Z-GO Express S4 High Output
Our Blog: www.glampin.life
YouTube: www.youtube.com/GlampinLife

drmopar
Explorer
Explorer
I think the balls are a "ROLL OVER" valve to shut fuel off on vehicle roll over. Hope this helps.

ramgunner
Explorer
Explorer
I can't tell you what that is - I haven't had any issues on ours.

I will make two recommendations on fuel.

1> Ethanol-free fuel (pure-gas.org and others can tell you where to get it)
2> SeaFoam

The combination will give you extended storage and reduce the **** (insert preferred term here) that shows up with Ethanol-added fuel.
Editor - http://www.RamGunner.com / http://www.MomentumGunner.com
2014 Ram 3500 Tradesman/CTD/AISIN/4.10/4WD/CC/LB/DRW/VHF/UHF/APRS/CB/SCANNER
Grand Design Momentum 385TH (Polaris RZR800/VHF/UHF/HF)