12v Fuel Transfer Pumps

[DieselBound]

I can't really say how my setup does this: only had it for about 6 months. It's a "certified" diesel fuel tank (sold specifically for it), in which case I'd think that it ought to be designed with such things in mind? It has one hole that has a radiator cap on it; that obviously should work for positive pressure, but no idea on negative pressure. I don't pump a lot of fuel out at a time so maybe that's why I haven't encountered any problems. I tend to periodically twist the cap and let out pressure (built up from outside temperatures), maybe I don't need to?

 

[BCrouse]

Another question for those with electric pumps: What do you use to prevent a vacuum on the tank as you are pumping?

Im using a vented fill cap

Fill-Rite FRTCB Vented Fill Cap with 2" Base Amazon.com: Fill-Rite FRTCB Vented Fill Cap with 2" Base: Industrial & Scientific

 

[powerscol]

** "Question: What practices do people take when fueling up using 12v power? I've always heard to not use the power from the vehicle that's being fueled. " **

I am actually going to upgrade my setup to have a deep cycle sealed battery, in a case, beside the tank to connect too. Popping the hood to connect and then lowering the hood to get to the fill cap is problematic. Yes I know I can install a female plug outside, but for the cost and trouble I am taking a different approach. I picked up a small solar panel with battery charger/tender (still works) at a yard sale a week ago. It should keep the battery charged between uses. Now to pick a battery brand and model.

 

[DieselBound]

It kind of depends on how much pumping you're going to be doing.

I've been using these batteries for a while now:

UPG 12V 9AH Internal Thread AGM SLA Emergency Lighting Battery UB129 Group 27 | eBay

Used for some portable electronet fencing, some pumping, and currently is operating a nestbox door (overkill- my small battery gave up the ghost; finally decided to put my solar panels to use and they're keeping things charged and I don't worry about forgetting to charge the battery anymore!).

Not sure if I'll keep with the current practice of using my Polaris' power/battery for pumping fuel. It's not a hassle, so far.

 

[FTG-05]

Im using a vented fill cap

Fill-Rite FRTCB Vented Fill Cap with 2" Base Amazon.com: Fill-Rite FRTCB Vented Fill Cap with 2" Base: Industrial & Scientific

And only now do I see that same cap in your pic#1 above......

Thanks for the link, appreciate it!

 

[FTG-05]

Measured my tank yesterday, I got 18 cu ft. exactly. My handy little converter program says that is 134.6494 gallons.

Super! Now I need to make a platform for it and then get a pump and filter.

Thanks,

 

[BCrouse]

I got my two filters connected inline and pressure tested. Works well. I also added a shutoff valve between the pump and the filters.

 

[bdog]

Looks good. Why the shutoff valve?

 

[BCrouse]

Looks good. Why the shutoff valve?

Just in case. Theres a couple scenarios I can think of it would be helpful with.

Chances are it will just sit there open for the life of its use.

Better to have it and not need it.

 

[bdog]

What scenarios? Just curious as when you shut off the pump the flow stops. Maybe I am missing something but I can't figure out why it would be needed.