Adding an axillary fuel tank information resources?

[Swedefj40]

My 22' cabin cruiser has a 189L (50 u.s. gallon) fuel tank and I need to bring at least another 75L (20 gal) of fuel to feel comfortable on some of my long overnight trips so I'm contemplating adding an additional fuel tank to the boat. Can someone point me in the right direction (online resource) for the proper way to do this (ie: coast guard standards etc.)? Thanks.

 

[dingbat]

My 22' cabin cruiser has a 189L (50 u.s. gallon) fuel tank and I need to bring at least another 75L (20 gal) of fuel to feel comfortable on some of my long overnight trips so I'm contemplating adding an additional fuel tank to the boat. Can someone point me in the right direction (online resource) for the proper way to do this (ie: coast guard standards etc.)? Thanks.

I have a 94 gallon main and a 54 gallon aux tank on a 22’ Walkaround

Both tanks are mounted on centerline. One under the cockpit floor and other under the helm floor.

Both are accessible with removable floor panels.

Uses a two way selector valve to switch from one tank to another

The hard parts unless designed for two tanks, is to find a location to mount the tanks and the access covers

 

[alldodge]

Depends on how much room you have, and on a 22 foot cabin cruiser there probably isn't much. Some use bladder tanks so they collapse. Head out and after burning 20 some gallons, place in main, fold up and stow

 

[Swedefj40]

I have a 94 gallon main and a 54 gallon aux tank on a 22’ Walkaround

Both tanks are mounted on centerline. One under the cockpit floor and other under the helm floor.

Both are accessible with removable floor panels.

Uses a two way selector valve to switch from one tank to another

The hard parts unless designed for two tanks, is to find a location to mount the tanks and the access covers

My main tank is under the deck, directly in front of my Mercruiser v6 engine. There is a bulkhead forward of the tank which lines up with the back wall of the cabin above. My thought is to put the aux tank below the cabin floor on the other side of the bulkhead, directly in line with the original tank. I currently have storage compartments in this spot.

 

[Swedefj40]

Depends on how much room you have, and on a 22 foot cabin cruiser there probably isn't much. Some use bladder tanks so they collapse. Head out and after burning 20 some gallons, place in main, fold up and stow

Yes, the limited space is an issue. Storing 3 jerry cans in the v-berth is a pain that I really want to eliminate, not to mention the safety issues with transferring fuel from them to the main tank mid trip.

 

[Swedefj40]

Here's a shot of the area I was thinking of locating the new tank. The hull is about 3" below the floor. The steps are lockers that need to be replaced this off-season. I was hoping to reconfigure this area and incorporate the tank.

 

[Swedefj40]

Sorry, can't post the pic for some reason.

 

[Swedefj40]

Anyway, I guess what I'm asking is for a resource to know what exactly are the safest ways to add a tank. How to tie it into the fuel system, etc.

 

[dingbat]

Anyway, I guess what I'm asking is for a resource to know what exactly are the safest ways to add a tank. How to tie it into the fuel system, etc.

Sites-WestMarine-Site

West Marine

www.westmarine.com

 

[Swedefj40]

Sites-WestMarine-Site

West Marine

www.westmarine.com

Yeah, stuff like that! Thank you!