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 Water Separator? Yes or No? 
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Post Water Separator? Yes or No?
I've searched and read a few comments on installing a separator. Does everyone use them? I understand the pro's but what are the reasons you wouldn't/don't have one?


Fri May 22, 2015 10:13 am
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Post Re: Water Separator? Yes or No?
I don't have one but only use non ethanol fuel and even then it never sits for more than a couple weeks before it gets ran through or drained into a car.


Fri May 22, 2015 10:38 am
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Post Re: Water Separator? Yes or No?
I've had one on every motor I've owned. Not sure how much it has helped but if it degrades any performance I'd assume it's too little to notice.

Is it suppose to help w/ ethanol? I didn't think a water separator helps with that.

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Fri May 22, 2015 10:50 am
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Post Re: Water Separator? Yes or No?
ethanol or corn squeezins that are blended with fuel seems to absorb the moisture (water) easier than non-ethanol fuels. I notice more rust/corrosion in carbs from ethanol blended fuels on equipment that sits for real long periods of time, my .02 cents.

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Fri May 22, 2015 10:58 am
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Post Re: Water Separator? Yes or No?
Regardless if you run ethanol fuel or not, it would be cheap insurance to run one.

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Fri May 22, 2015 12:58 pm
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Post Re: Water Separator? Yes or No?
Is there a specific type or model that is better than another?


Fri May 22, 2015 1:33 pm
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Post Re: Water Separator? Yes or No?
I have them on every boat. I prefer Racor and I use a 120R on my mud boat.

If you get contaminated fuel, a Racor can save the day.

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Fri May 22, 2015 1:40 pm
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Post Re: Water Separator? Yes or No?
Racor 025-RAC-02 is a nice small one that is good for these small engines.


Fri May 22, 2015 1:56 pm
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Post Re: Water Separator? Yes or No?
I like to Use one because I have an aluminum gas tank

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Fri May 22, 2015 2:04 pm
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Post Re: Water Separator? Yes or No?
One with the bowl that you can drain if you have a decent size tank. I run one with a bowl in my bassboat. I've heard of the standard filter types filling up with enough water to kill the engine. Then you have to take the filter off, pour it out, and reinstall. With the bowl type you can just drain the water out.

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Fri May 22, 2015 2:10 pm
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Post Re: Water Separator? Yes or No?
theres no reason not to have one.

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Fri May 22, 2015 2:27 pm
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Post Re: Water Separator? Yes or No?
Yes first time you get stranded with water in fuel no if you don't

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Fri May 22, 2015 2:32 pm
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Post Re: Water Separator? Yes or No?
kinda like having a winch on your rig. you'll love that you had it when needed

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Fri May 22, 2015 2:35 pm
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Post Re: Water Separator? Yes or No?
Never run with one, really haven't needed it. I haven't had any problems with ethanol fuel (which is all you can get around here) even when it sits up for a couple of months. I don't have one on my mower either for the same reason.

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Fri May 22, 2015 5:16 pm
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Post Re: Water Separator? Yes or No?
I have three boats. Two have water catcher. the two that have them. Seem to run smoother. And start smoother. The one motor that doesn't. seems to start a little rougher. And does not run as smooth. Also time to time before my yearly preventive maintenance. It'll run really ruff and not get full throttle.


Sat May 23, 2015 10:25 am
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Post Re: Water Separator? Yes or No?
Need one for sure!!!

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Tue May 26, 2015 6:45 am
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Tue May 26, 2015 6:54 am
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Post Re: Water Separator? Yes or No?
Never had one on my mud rig since 2009.
I do run a plastic gas tank though...

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Tue May 26, 2015 7:00 am
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Post Re: Water Separator? Yes or No?
Yea, I have an aluminum tank in my boat so I guess it would be good to install one. Thanks for the input.


Tue May 26, 2015 8:55 am
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Post Re: Water Separator? Yes or No?
I run the standard kind with the spin on filter. I change it once a year for $6. I have a plastic tank, and run non ethanol gas. I use this as my fuel filter also. Running the water seperate and a fuel filter is probably a little hard on the fuel pump. The water separator filter has the same microns as the fuel filter. I've never had any issues.

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Sun May 31, 2015 8:26 pm
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Post Re: Water Separator? Yes or No?
Never needed one and feel they are just another item that could cause issues with fuel delivery especially once the temps drop below 32 at night during duck season


Wed Jun 03, 2015 10:14 am
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Post Re: Water Separator? Yes or No?
Run one on every boat I own.

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Wed Jun 03, 2015 2:09 pm
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Post Re: Water Separator? Yes or No?
I surely wouldn't hurt to have.. I also add stabil in everything I own too and don't have any of the problems my buddies do with starting and idling.. ( boats, atvs, mowers, chainsaws, side by side.)

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Wed Jun 03, 2015 2:19 pm
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Post Re: Water Separator? Yes or No?
I know these are big lawn mower motors, but if water or trash shuts you down while cutting grass, at least your at home or near your truck. I prefer a little insurance and using a water seperator is CHEAP insurance. I say use one and don't look back.

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Wed Jun 03, 2015 9:28 pm
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Thu Jun 04, 2015 6:10 am
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Post Re: Water Separator? Yes or No?

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Thu Jun 04, 2015 10:52 am
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Post Re: Water Separator? Yes or No?
For those of you who have forward mounted gas tanks are you mounting the water separator closer to the tank or back closer to the transom?

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Fri Mar 08, 2019 1:50 pm
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Post Re: Water Separator? Yes or No?
Mine is mounted on the transom under the motor. Works great


Fri Mar 08, 2019 5:14 pm
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Post Re: Water Separator? Yes or No?

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Sat Mar 09, 2019 8:04 am
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Post Re: Water Separator? Yes or No?
I have always used one on my boats so I will be using one for the new prodigy. All my previous hulls had the duel tank in the rear so I always mounted on the transom. The new boat has a forward mounted tank so I was just curious where everyone else was mounting there's.

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Sat Mar 09, 2019 11:18 am
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Post Re: Water Separator? Yes or No?
Just don't buy a cheap Sierra spin-on. It will rust on the inside before a cat can lick his ass.
Yamaha element, no problems.

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Sun Mar 10, 2019 8:50 pm
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Post Re: Water Separator? Yes or No?
Never had one and not getting one now. I little water every now and then will clean the carbon right out. :lol:

One of Dales kids sprayed water into the exhaust until it filled the cylinders. (figured this out after we wondered how in the hell it was full of water) Took the plugs out and spun it a few times, drained the oil, put new oil in, fired it up and hauled ass. Ran it all day long at the poker run.

Yall are other thinking it. :lol:

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Mon Mar 11, 2019 9:51 am
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Post Re: Water Separator? Yes or No?
I've never used them on any motor--I run Marine stabil with every fill up.

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Mon Mar 11, 2019 8:12 pm
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Post Re: Water Separator? Yes or No?
Do you have have a water separator on your lawnmower? There is basically no difference. The little bit of water that gets in there is burned through the engine. I have also had aluminum fuel tank in my boat for over 30 years. Lots are scared of them because of condensation, I have never had an issue with water in my fuel or better yet enough water in my fuel that my engine ran like crap. These are not high tech automobile engines, there F'n lawnmower engine used in a different platform. Don't make it complicated. Oh and another thing, I have also seen where a water separator, if not checked and maintained, will collect water as it should, but will also fill and slug water into the engine. So just because you have one, doesn't mean anything if not maintained.


Tue Mar 12, 2019 3:34 am
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Post Re: Water Separator? Yes or No?
Never used one. I’ve never had any issues related to water in the fuel. I figure it’s one more place to potentially get air in the fuel system. I have a shitty EPA plastic tank.


Tue Mar 12, 2019 4:16 am
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Post Re: Water Separator? Yes or No?
After having water and trash problems in every boat I have owned, I now use one. The last two boats have never had an issue with the Separator. Too cheap not to get one. Change the filter once per year and always find something I would not want in my engine.


Wed Mar 13, 2019 12:47 pm
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Post Re: Water Separator? Yes or No?
FYI my original post was from 2015. I never did install the water separator and have had zero issues pertaining to water in the fuel.


Wed Mar 13, 2019 3:50 pm
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Post Re: Water Separator? Yes or No?
Lmao ^^^

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Wed Mar 13, 2019 5:53 pm
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Post Re: Water Separator? Yes or No?
if I have a problem, I look at the fuel filter that comes with the motor. been fine on my pd since 2003 or so.

airboat and bayboat, yes. lawnmower engine mudboat, no.


Wed Mar 13, 2019 5:59 pm
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Post Re: Water Separator? Yes or No?

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Sat Mar 16, 2019 8:03 pm
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