recently I did a bunch of work on my auxiliary gas tank (see here) - but something that came up during all of that is that that model of tank (originally by Con-Ferr) had a little vent port just to the left of the fill neck located at the very top of the tank. this vent port came capped when I obtained the rig.
additionally, I had noticed some issues filling the tank which I related to no venting of the tank so pressure would back up making it a PITA to fill as the nozzle would always shut off quick like unless I held it just right to let air in/escape when filling.
so, to address this, I uncapped that vent and put a nice 1' long tube off of that that goes up the frame about 8-9" above the tank. problem solved....
BUT, the issue now is that I have seen gas leak out of the top of that tube! even under less than full tank, it will rise up that tube & flow over. not much, but it does.
WTF? Should I just recap it as it was when I first got it? I thought my idea would be a good solution and should likely have been there in the first place (or why even have the vent port). I can fill it faster easier now, but even running that vent tube higher than the tank and fluid (under pressure or heat or whatever) can still find it's way up that tube.
additionally, I had noticed some issues filling the tank which I related to no venting of the tank so pressure would back up making it a PITA to fill as the nozzle would always shut off quick like unless I held it just right to let air in/escape when filling.
so, to address this, I uncapped that vent and put a nice 1' long tube off of that that goes up the frame about 8-9" above the tank. problem solved....
BUT, the issue now is that I have seen gas leak out of the top of that tube! even under less than full tank, it will rise up that tube & flow over. not much, but it does.
WTF? Should I just recap it as it was when I first got it? I thought my idea would be a good solution and should likely have been there in the first place (or why even have the vent port). I can fill it faster easier now, but even running that vent tube higher than the tank and fluid (under pressure or heat or whatever) can still find it's way up that tube.
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