12 meter mystery tank

This forum is for comments and the exchange of information relating to Trojan Boats and boating. Please do not post used parts or boats For Sale in this area. For general, non-boating topics please use our "General Discussions" section.

Note: Negative or inflammatory postings will not be tolerated.

Moderators: BeaconMarineBob, Moderator, BeaconMarineDon

bluesrocker22
Registered user
Posts: 33
Joined: Sat Feb 23, 2019 4:17 pm

12 meter mystery tank

Post by bluesrocker22 »

Hi,
I have located a tank on our 1988 12 meter aft cabin that I cannot identify. Just aft of the forward bilge pump,on centerline there is a large built in tank. From the lines going in and out, it might be a waste tank? Any help appreciated. I have two waste tanks identified already (1 under batteries and Sanex tank under dinette set)
User avatar
prowlersfish
2024 Gold Support
2024 Gold Support
Posts: 12672
Joined: Sat Nov 05, 2005 6:56 pm
Location: Lower Chesapeake Bay ,Va

Re: 12 meter mystery tank

Post by prowlersfish »

I would be surprised if you had 3 waste tanks . Hopefully someone will know .
Boating is good for the soul
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
Life is to short for a ugly boat :D
bluesrocker22
Registered user
Posts: 33
Joined: Sat Feb 23, 2019 4:17 pm

Re: 12 meter mystery tank

Post by bluesrocker22 »

The lines certainly make it look like a waste tank. I am going to try and measure and calculate volume and see what that might tell me.
User avatar
El L Sea
2024 Gold Support
2024 Gold Support
Posts: 179
Joined: Fri Oct 23, 2015 8:27 am
Location: Fort Myers, FL

Re: 12 meter mystery tank

Post by El L Sea »

On the 12m Sedan this is the water tank.
El L Sea
Fort Myers, FL
1988 Trojan 12m International Sport Fisherman
2017 Boston Whaler 130 Tender w/ 40HP Mercury
BeaconMarineBob
Beacon Bob
Beacon Bob
Posts: 269
Joined: Thu Aug 06, 2009 6:39 pm
Location: Easton, PA
Contact:

Re: 12 meter mystery tank

Post by BeaconMarineBob »

There were three 12 Meter the 12 meter Convertible, the 12 meter express and the 12 meter motor yacht.

Not sure which one you mean by 12 meter aft cabin.

On all three 12 meters there were only two built in tanks the water tank and the wast tank.

Your owners manual would show these two build in tanks as well as if the treatment system was originally installed by the factory.

If you do not have the owners manual or if you need to ID your 12 meter please feel free to contact us with your Hull number.

Bob
609 713 4602
Bob Cushman, Owner
Beacon Marine Supply
Bob@BeaconMarineSupply.com
(609)713-4602
~ Please Contribute to the Forum ~
bluesrocker22
Registered user
Posts: 33
Joined: Sat Feb 23, 2019 4:17 pm

Re: 12 meter mystery tank

Post by bluesrocker22 »

Sorry all,
It is a 12 meter motor yacht.
VERY close to the mystery tank (and right beside the hot water heater) is the "fresh water tank" which is an aluminum cylindrical tank. The mystery tank is rectangular and built in right on center-line and just aft of the forward bilge pump.
bluesrocker22
Registered user
Posts: 33
Joined: Sat Feb 23, 2019 4:17 pm

Re: 12 meter mystery tank

Post by bluesrocker22 »

Ahhhh..,,
Would the 12 meter Sedan and the 12 meter motor yacht be built from the same "HULL" so that I have a built in water tank ("leftover from the Sedan hull") but it is not used because I have the 12 meter motor yacht?
User avatar
prowlersfish
2024 Gold Support
2024 Gold Support
Posts: 12672
Joined: Sat Nov 05, 2005 6:56 pm
Location: Lower Chesapeake Bay ,Va

Re: 12 meter mystery tank

Post by prowlersfish »

Have you traced the line/hoses ?
Boating is good for the soul
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
Life is to short for a ugly boat :D
User avatar
prowlersfish
2024 Gold Support
2024 Gold Support
Posts: 12672
Joined: Sat Nov 05, 2005 6:56 pm
Location: Lower Chesapeake Bay ,Va

Re: 12 meter mystery tank

Post by prowlersfish »

bluesrocker22 wrote: Mon Feb 25, 2019 12:29 pm Ahhhh..,,
Would the 12 meter Sedan and the 12 meter motor yacht be built from the same "HULL" so that I have a built in water tank ("leftover from the Sedan hull") but it is not used because I have the 12 meter motor yacht?
Unlikely
Boating is good for the soul
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
Life is to short for a ugly boat :D
bluesrocker22
Registered user
Posts: 33
Joined: Sat Feb 23, 2019 4:17 pm

Re: 12 meter mystery tank

Post by bluesrocker22 »

I tried to trace the lines but I cannot see where they come out in the engine room. I have a 16' "snake" camera. I will try to run that back there this weekend and try to see where the lines go.
User avatar
WayWeGo
2024 Gold Support
2024 Gold Support
Posts: 782
Joined: Fri Feb 13, 2015 11:13 am
Location: Oakton, VA / Rhode River - Chesapeake Bay

Re: 12 meter mystery tank

Post by WayWeGo »

I find having my owners manual answers many questions like this. You never know what somebody has added to the boat, but I often refer to mine when planning a project or after running into something unexpected.

If you don't have yours, you can get one from Bob at Beacon Marine. He is a wonderful resource and has been most helpful when I have called him.

Bob also has been a great source for parts. He often has good deals on generic parts as well as an inventory of Trojan specific ones that are not available anywhere else. His contact info is in his post above or you can click on the button above for the Trojan Online Store.
1975 F-36 Convertible
Twin Chrysler 440's
bluesrocker22
Registered user
Posts: 33
Joined: Sat Feb 23, 2019 4:17 pm

Re: 12 meter mystery tank

Post by bluesrocker22 »

I have the owner's manual (ordered from Bob I believe) but I cannot find anything in it on this tank.
User avatar
prowlersfish
2024 Gold Support
2024 Gold Support
Posts: 12672
Joined: Sat Nov 05, 2005 6:56 pm
Location: Lower Chesapeake Bay ,Va

Re: 12 meter mystery tank

Post by prowlersfish »

Photos ??
Boating is good for the soul
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
Life is to short for a ugly boat :D
bluesrocker22
Registered user
Posts: 33
Joined: Sat Feb 23, 2019 4:17 pm

Re: 12 meter mystery tank

Post by bluesrocker22 »

I am going to try this weekend to get my snake camera in there and see if I can snap some shots.
User avatar
WayWeGo
2024 Gold Support
2024 Gold Support
Posts: 782
Joined: Fri Feb 13, 2015 11:13 am
Location: Oakton, VA / Rhode River - Chesapeake Bay

Re: 12 meter mystery tank

Post by WayWeGo »

bluesrocker22 wrote: Tue Feb 26, 2019 7:51 pm I have the owner's manual (ordered from Bob I believe) but I cannot find anything in it on this tank.
👍

Could it be a gray water tank (i.e. drain from sinks and/or shower)?
1975 F-36 Convertible
Twin Chrysler 440's
Post Reply