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Best DIY way to drain gas tank?
- darylann
- Scurvy Dog
- Posts: 31
- Joined: November 2nd, 2017, 9:18 pm
- Vessel Info: 1992 Carver 33 Aft Cabin... My first boat!
Dreamed and schemed for 7 years, and finally made it happen in 2017! - Location: Peoria, IL
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Best DIY way to drain gas tank?
Some say just add a bottle of Heet and about 15 gallons of gas and I’ll be good to go. Others say NO, drain that tank to get all the water out before putting good gas in! I wish the Heet would be a quick, cheap and easy fix, but I’m thinking draining it would probably be best.
Opinions? Suggestions?
Peoria, IL (for now)
My first boat!
-
- CYO Supporter
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- Joined: March 28th, 2016, 10:52 pm
- Vessel Info: 1998 Carver 355
Suspicious Fishes !
2022 Kawasaki 310X - Location: upper chesapeake bay
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Re: Best DIY way to drain gas tank?
- bud37
- Admiral
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Re: Best DIY way to drain gas tank?
- g36
- Admiral
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- Joined: April 7th, 2014, 6:07 pm
- Vessel Info: 1997 Carver 405
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Re: Best DIY way to drain gas tank?
Crusader xli
The Black Pearl
Soddy Daisy Tn.
- Midnightsun
- CYO Supporter
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- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
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Re: Best DIY way to drain gas tank?
The boat I referred to the, tank was never drained, the boat continued with the second owner for close to 10 years with no water/gas related issues. Just saying it could be a very quick fix.
- km1125
- Admiral
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Re: Best DIY way to drain gas tank?
g36 wrote:Source of the post Use a small electric fuel pump like a Mr. Gasket 12S Micro Electric Fuel Pump to drain into portable jugs. Something like $30 on Amazon. could remove the gas tank sender and drop a tube to get most out or hook it up to fuel line which will leave some. I've set up a remote switch to control mine, you must be concerned with sparks but this pump will do great.
^^^THIS.
I was wondering if my tanks had collected any water, so one year I ran the tanks down below half on each then I used a 5' copper pipe connected to a similar pump and was able to lower that pipe down into the tanks from the fill port (it was a straight shot right down into the tank). Ran that through a water-separating filter and then pumped it into the other tank, until I drained it completely empty. Then, I reversed the process pumping all the fuel back, completely emptying the other tank. I ended up finding absolutely no water so I was happy.
If you don't have a straight shot in from your fill port, you might have to pull the fuel level sender and lower a hose that way.
Do not do the HEET and more gas thing
This is the rig I built (was only about $80 IIRC)
- darylann
- Scurvy Dog
- Posts: 31
- Joined: November 2nd, 2017, 9:18 pm
- Vessel Info: 1992 Carver 33 Aft Cabin... My first boat!
Dreamed and schemed for 7 years, and finally made it happen in 2017! - Location: Peoria, IL
- Has thanked: 78 times
- Been thanked: 1 time
Re: Best DIY way to drain gas tank?
Midnightsun wrote:Do you not have water separating fuel filters? these should fill up before you have running issues. Had this happen to me many years ago when coming back on fumes in very agitated waters. Lesson learned and to this day carry spare filters on board. With only 15 gallons remaining (maybe only a few) and the boat movement, even small quantities of water will get picked up and gradually fill the filter leading to poorly running to no go.
The boat I referred to the, tank was never drained, the boat continued with the second owner for close to 10 years with no water/gas related issues. Just saying it could be a very quick fix.
Great info… Thanks for sharing! I will check this out for sure! Every time something goes wrong on my boat, it’s a part of a system I haven’t worked on yet and a total learning process. I’d like to do as much work as I can myself, so I can learn every inch of my boat and maintain it myself when possible. Thanks again!
Peoria, IL (for now)
My first boat!
- Midnightsun
- CYO Supporter
- Posts: 2847
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
- Has thanked: 257 times
- Been thanked: 1098 times
Re: Best DIY way to drain gas tank?
If it starts sputtering next season this would indicate enough water in the tanks so you may need to empty them however my gut feeling is it just sucked up enough water over X amount of time running on nearly empty tanks and since you never changed the filters, this is what happens.
- Dewmyster
- Deck Hand
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Re: Best DIY way to drain gas tank?
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