Glogged Anti Siphon

[brianq]

My anti siphon valve keeps clogging since I am low on gas. I have read conflicting posts some say its ethanol others say its my galvanized tank breaking down. Can anyone take a look and tell me what it is before I unnecessarily replace my fuel tank?

Ideally I would like to pump the tank and clean it out.

When the material drys it looks like wood shavings.

I am also wondering if i pump the gas through a shirt and collect the material can I still use the gas?

 

[jakedaawg]

You actually have a galvanized tank still? Wow. How old a vessel are we talking about? Fuel sample into clear jar, post pic. That looks like stabil and ethanol and bad fuel to me but I have not seen a galvanized tank in twenty years. Not saying their not out there just that the few hundred boats I get don't have them.

 

[Silvertip]

To clean the tank you siphon or suck out the fuel. You remove the tank. You remove the fuel gauge sender and then drop in a length of heavy chain. You than shake the devil like a martini to loosen the crud and then exctract it in any manner at your disposal.

 

[GA_Boater]

Has the boat been sitting idle for a long time? That's what it takes for old gas and additives to turn into gunk - Time.

One thing you can do is remove the valve if it isn't seized and pump out what you can, then if you have access to the send, remove it and finish the cleaning. Use something like a hand pump for changing oil.

Hope there isn't too much gas in the tank. I wouldn't strain it because if you added new gas, all it did was make more bad gas.

 

[alldodge]

You could put a straight brass/aluminum fitting on the tank for a while. Keep changing the filter until clean then install the valve

 

[Scott Danforth]

looks like compost in your tank.

most likely you will end up replacing the tank.

 

[boobie]

Agree with the above. Replace the tank and be done with it.

 

[brianq]

(I think the tank is galvanized? Looks it? Hull is an 1986 could be aluminum

UPDATE:

This weekend I pumped most of the tank through a rag and removed a lot of the crap. There is still a lot more that I can see but I cant get to.

I installed an in-line fuel filter. I was planning to just keep replacing that until I get it all out. Is this a viable option?

Looks like replacing the tank is the way to go. I have a call into Grady for specs for a replacement I want to see what it will cost.

 

[Scott Danforth]

plumb a water separating filter between the tank and the fuel pump. the cheap in-line fuel filters are not legal in boats.

 

[brianq]

(I think the tank is galvanized? Looks it? Hull is an 1986 could be aluminum

UPDATE:

This weekend I pumped most of the tank through a rag and removed a lot of the crap. There is still a lot more that I can see but I cant get to.

I installed an in-line fuel filter. I was planning to just keep replacing that until I get it all out. Is this a viable option?

Looks like replacing the tank is the way to go. I have a call into Grady for specs for a replacement I want to see what it will cost.

The boat has 2 the issue has been the clog created at the anti-siphon way before the filters.