Fuel fill vent

[Joker2]

I have a 75 v20 with 20 gall. saddle tanks, I am getting water in my fuel vent in rough conditions. any suggestions on how to correct the problem. FYI when I redid my tanks I mounted vents with the screens facing down. i did not put a clamshell cover, should I have?

[Joker2]

Is there another type of vent that does not allow water in

[spoggy]

Did you route the hose from the vent upwards towards the gunwale before turning downwards to the fuel tank? It's like installing an inverted p-trap. Also, have the vent angled at 45 degrees toward the stern.

[steplift20]

I here they have I vent fitting with a one way check valve Are they any good ?

[macojoe]

When I had my 75, I moved the vents up to stop fuel from leaking, andput clam shells over the vent to stop the water tfrom going in under way!!

http://www.ebay.com/itm/SEACHOICE-SS-CLAM-SHELL-VEST-NIP-16151-/391501961978?hash=item5b2755dafa:g:Ow4AAOxygj5Slji K&vxp=mtr

[smokeonthewater]

Check valve in a vent would be bad... It needs to relieve both pressure AND vacuum.

[Striper80]

My vent has a full loop in it. Should it just be a hump like an upside down p trap?

[smokeonthewater]

Yes... A full loop will hold liquid in the bottom

[Striper80]

It's funny my fuel vent, bilge pump, and fishboxes drain hoses all had full loops in them. I took care of the drain hoses already but when I changed the vent hose I put it back the way it was. I'll fix that tomorrow. Glad I saw this thread since I plan on taking my boat to the marina tomorrow.

[tsubaki]

Do like MJ said.
Make the new locations above the rub rail and just leave the old ones in place so you don't need to patch the holes.
http://i175.photobucket.com/albums/w159/tsubaki3/Picture104.jpg