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Old 01-22-2016, 02:31 PM   #2
Scraping Paint
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Join Date: Oct 2007
Posts: 13,745
The original tanks in our GB36 were 150 gallons each. There were three of them, one on each side of the engine room and one across the back. I don't know if the third tank was due to the boat being a twin. The tank configuration and capacity changed some through the life of this particular model.

According to the owners manual for GB36-790, also a twin, the tank capacity was 400 gallons in two, 200 gallon tanks. I don't know what year 790 was built. Our boat was built in 1973 and is hull 403.
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