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 Fuel on port side
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Boomeroo
Navigator

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Australia
123 Posts

Initially Posted - 11/16/2020 :  01:21:35  Show Profile  Reply with Quote
Hi, My older SK has the fuel shelf in the port dumpster. I have it in a plastic container with a drain to the cockpit. But still vent and filling fumes escape.
What has been done to olderboats. I plan to put the 3 gallon tank in the aft of the cockpit and build a cover over it strong enough to stand on and insulated .
Any ideas or other solutions.

Graeme Bishop boomeroo Australia
C25 SK

islander
Master Marine Consultant

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USA
3766 Posts

Response Posted - 11/16/2020 :  12:24:57  Show Profile  Reply with Quote
Make sure the cover is well vented. Don't want fumes to build up inside.

Scott-"IMPULSE"87'C25/SR/WK/Din.#5688
Sailing out of Glen Cove,L.I Sound


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Derek Crawford
Master Marine Consultant

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USA
3253 Posts

Response Posted - 11/17/2020 :  09:00:57  Show Profile  Reply with Quote
I had the same setup on TSU. I always took the gas tank off the boat to refill it. When leaving the boat I always tightened down the vent cap, and was never bothered by fumes in the locker.

Derek Crawford
Chief Measurer C25-250 2008
Previous owner of "This Side UP"
1981 C-25 TR/FK #2262 Used to have an '89 C22 #9483, "Downsized"
San Antonio, Texas
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Voyager
Master Marine Consultant

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USA
4623 Posts

Response Posted - 11/17/2020 :  17:16:25  Show Profile  Reply with Quote
The regulations say that if you have an enclosed area on a boat where gasoline fumes are produced by a gas tank or engine carburetor then you need a positive ventilation system. Most inboard powerboats have two cowls and a blower controlled by a switch. You have to run the blower for a few minutes to clear the air.

Heres an example:
https://www.westmarine.com/buy/west-marine--engine-blower-4--P013855028

My boats electrical panel backs up inside the dumpster beneath the cockpit. If the proper air-gas mixture collected inside the area and I flipped the switch, Im certain that the boat would blow sky high. The blower would prevent that inconvenience, and Id advise anyone with that problem to go ahead and install one.

Bruce Ross
Passage ~ SR-FK ~ C25 #5032

Port Captain Milford, CT

Edited by - Voyager on 11/17/2020 17:25:57
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OLarryR
Master Marine Consultant

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USA
3271 Posts

Response Posted - 11/18/2020 :  07:02:37  Show Profile  Visit OLarryR's Homepage  Reply with Quote
I am not sure if this is doable but rather than build/install an insulated cover, perhaps check out portable plastic coolers that the 3 gallon tank can fit in. You could cut rectangular slots in the cooler to ventilate it similar to the slot in the cockpit cover of later model Catalinas.

Not sure why you need an "insulated" cover. Why not just build a free standing shelf and place in aft part of cockpit and slide the the 3 gallon tank underneath it. Oftentimes, I only store my 3 gallon tank in the starboard cockpit ventilated locker/cover. When I use it, I remove it from the locker and leave it aft adjacent to the transom. It's not an area I would be standing anyway, so I am okay with leaving the tank there when sailing. If I have someone sailing with me, I oftentimes rest the life vests on top of the gas tank - Just lays on top of the tank and does not interfere with the tank vent. I always wear a self inflatable preserver but always have the life vests in the cockpit and if sailing with more people, then those choosing not to wear a vest, I leave the other vests near the companionway.

Larry
'89 Robin's Nest#5820, Potomac River/Quantico, Va
http://catalina25.homestead.com/olarryr.html
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Boomeroo
Navigator

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Australia
123 Posts

Response Posted - 11/18/2020 :  21:01:33  Show Profile  Reply with Quote
Thanks for that . A shelf is better as will allow better air circulation and easier to fit . Tank in locker is well insulated from sun on 100 deg days so want ventilation and insulation if outside.

Graeme Bishop boomeroo Australia
C25 SK
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