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Dual tanks - how to have two gauges?

 
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Wood Zeppelin



Joined: 09 Feb 2016
Posts: 257
City/Region: Seattle
State or Province: WA
C-Dory Year: 1988
C-Dory Model: 16 Angler
Vessel Name: TBD
Photos: Childhood Dream
PostPosted: Tue Mar 28, 2023 2:08 pm    Post subject: Dual tanks - how to have two gauges? Reply with quote

Hi,

There are two big tanks in the back of my 22', and one electronic gauge on the dash that only reads the "total " amount of gas. I like to know how much is in each individual tank. Is there an easy way to get gauges on each tank? Mechanical or otherwise?

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James (16x2) Salay - Real Estate Broker, Engineer, Artist, Fisherman, Outdoor Enthusiast






Current boats:

1988 16' Angler - "C Creature"
1997 16' Cruiser - 'Wizard"

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14.5' Drift Boat - "Wood Zeppelin"
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Robert H. Wilkinson



Joined: 26 Jan 2011
Posts: 1187
City/Region: Port Ryerse
State or Province: ON
Vessel Name: Romakeme IV
Photos: Romakeme IV
PostPosted: Tue Mar 28, 2023 3:37 pm    Post subject: Reply with quote

My old Campion had 2 tanks with a gauge and a toggle switch. One switch position read the port tank and the other the starboard tank. Probably pretty simple to wire one up.

Rob

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T.R. Bauer



Joined: 17 Nov 2007
Posts: 1683
City/Region: Wasilla
State or Province: AK
C-Dory Year: 1993
C-Dory Model: 22 Cruiser
Vessel Name: C-Whisperer
PostPosted: Tue Mar 28, 2023 5:49 pm    Post subject: Reply with quote

Robert H. Wilkinson wrote:
My old Campion had 2 tanks with a gauge and a toggle switch. One switch position read the port tank and the other the starboard tank. Probably pretty simple to wire one up.

Rob


Yup. Super easy and effective.
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-Waypoint-



Joined: 02 Nov 2019
Posts: 69
City/Region: Jensen Beach, Florida
State or Province: FL
C-Dory Year: 1998
C-Dory Model: 22 Cruiser
Vessel Name: Waypoint
Photos: Waypoint
PostPosted: Thu Mar 30, 2023 2:37 pm    Post subject: Reply with quote

If your fuel tanks have a sending unit for each tank. Then run a red wire from each tank sending unit all the way forward to the 3 way toggle switch. Wire one sending unit wire to the right side, the other to the left side, the gauge to the middle pole on the switch. Then connect your black ground to the gauge. Toggle the switch left or right to read each tank level.
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