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Is this a sure way of telling if your tank is full?

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Is this a sure way of telling if your tank is full?

Old 01-28-2019, 05:16 AM
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How old is your boat/motor(s)? Most setups made in the last 10-15 yrs. has some way of knowing how much fuel you used. I have a 150G tank and can tell within a gallon or two, by looking at my electronics how much gas it is going to take to fill. Less scientific method is listen for a gurgling sound.
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Old 01-28-2019, 07:44 AM
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Originally Posted by 30Concept View Post
How old is your boat/motor(s)? Most setups made in the last 10-15 yrs. has some way of knowing how much fuel you used. I have a 150G tank and can tell within a gallon or two, by looking at my electronics how much gas it is going to take to fill. Less scientific method is listen for a gurgling sound.
1989 model
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Old 01-28-2019, 10:35 AM
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Vent should below the fill. You are fueling too fast. Yes it's a pain but slow down and listen. It will say when it's a out to overflow.
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Old 01-28-2019, 10:50 AM
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I sure hope that overflow out of the vent and/or fill isn't going into the water.
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Old 01-28-2019, 02:08 PM
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No it isn't. The fuel dock gets pissed when you do that. lol
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Old 01-28-2019, 02:10 PM
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Gas came from the earth, not outer space, so yeah, you'll be fine. Who needs 3 more gallons? Eff that, stop when it first comes out. It'll splash out running if its that full so you won't even be able to use it anyways, so save yourself the $9-12.
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Old 01-28-2019, 02:11 PM
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Originally Posted by fishmaster273 View Post
No it isn't. The fuel dock gets pissed when you do that. lol
It's recycling, from the earth, back to the earth.
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Old 01-28-2019, 02:29 PM
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Originally Posted by fishmaster273 View Post
1989 model
On an older system like yours , stop when it spits out the vent. It’s full enough.

P.S. Do all the poisons and toxins that we use not come from the earth?
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Old 01-28-2019, 02:43 PM
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When the fuel gauge reads full
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Old 01-28-2019, 04:26 PM
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Originally Posted by fishmaster273 View Post
No it isn't. The fuel dock gets pissed when you do that. lol
The attendents at the busy fuel dock where I usually fill note that the Evironmental cops just about always leave a sheen on the water when they fill their boat. LOL
That doesn't meant they would not cite me or you for the same situation.
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Old 01-28-2019, 07:32 PM
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May also depend on how level the tank is...on lift, trailer, in water, where people are standing, etc...

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Old 01-28-2019, 09:25 PM
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Originally Posted by Grunts N Grits View Post
The gas doesn't stay in the hose also. Only if you continually top it off will it do that. Once you take the boat down the road, the gas will fill whatever air pocket is in the tank.
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Old 01-29-2019, 03:35 AM
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The cops just sit at our gas docks waiting for guys to ‘blow it out the vent’. Then they get a nice ticket as they go to pay their gas bill.
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Old 01-29-2019, 09:30 AM
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Originally Posted by spearfish25 View Post
The cops just sit at our gas docks waiting for guys to ‘blow it out the vent’. Then they get a nice ticket as they go to pay their gas bill.
That's ridiculous when most boats don't have accurate fuel gauges.
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Old 01-29-2019, 09:57 AM
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Originally Posted by CruiseToFish View Post
It's recycling, from the earth, back to the earth.
Lol, just like lead, arsenic, fertilizer, trash, etc. Just dump it in the water, no biggie.
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Old 01-29-2019, 02:14 PM
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Originally Posted by CruiseToFish View Post
It's recycling, from the earth, back to the earth.
Crap is made by your body and comes out of your body. Do you put it back in?
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Old 01-29-2019, 02:44 PM
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Originally Posted by fishmaster273 View Post
That's ridiculous when most boats don't have accurate fuel gauges.
They are accurate enough for MOST people. Don't need to overfill. Everyone has done it once. Just dont keep doing it. Fill slow that last few gallons if you need them so bad. Buy the tools. Catch cups. In line Whistles. Fill to 7/8. Stixk that vent hose in your mouth. What ever it takes to overcome being the jerk who spills fuel every trip to the pump. One gallon of fuel makes 10000 gallons of water unsafe to drink.

Sorry if that stings but dammit man it's the truth.
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Old 04-15-2019, 08:00 PM
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It still baffles me how I managed to only get 35 gallons into a 125 gallon tank each time I fill up. Why is 35 always the magic number?
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Old 04-16-2019, 02:30 PM
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Are you sure of the capacity and how much is in there before a fill?

Does your gauge work? And what kind of sender do you have in there?

I know most don’t rely on the gauge, or like it, but it can be pretty dang close , depending on type and in proper working order.

I have the old arm and float type but it works great. I have removed it and checked the arm bend for a proper reading at levels. I also know that the float is at the bow end of the tank. Small 42 gallon tank I don’t pack full or go offshore.

I can tell by the level and the swing of the gauge reading about how much is in there . As long as it’s swinging , it’s reading, at rest is the level.
Near empty equals a small swing at low reading in waves.
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Old 04-17-2019, 04:02 AM
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Originally Posted by fishmaster273 View Post
That's ridiculous when most boats don't have accurate fuel gauges.
And most owners think not having accurate gauges is okay.

The OP is only using 35 gallons. Who knows what indication he uses to go fill it again. Maybe he fishes the same place every time.

Either he doesn't know the size of his tank or he carry's a lot if fuel around for no reason. Even the really bad gauges aren't off by that extreme amount.

I like the vented caps where over flow just goes back into the fill line. Those whistles are nice to know when it's getting close. No real excuse to blow fuel out the vent.
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