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Old 06 March 2015, 15:58   #11
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Personally I'd go with the welding option, go find a small engineering shop that will take a few notes in cash for the job, ie don't go somewhere marine based, anyone with MIG or TIG welding facilities could do that
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Old 08 March 2015, 04:37   #12
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If you go the welding route, make sure your floor isn't sandwiched around wood. My Achilles SG floor was made that way.

jky
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Old 08 March 2015, 06:25   #13
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What model cadet and year are you getting ? Some of them have fittings on the transom that the rear board fits under. That fitting has a slot through it that a strap can be fed through to hold down a tank or battery.

My Old Zodi SIB had An Alloy floor that slotted together...just a matter of lifting and bolting/securing anything straight through and using rounded SS bolts facing down...as I did with plastic fuel tank,and load carry straps...although I had a pull start in those days!
Pop rivets won't cut it long term...and why go to the considerable bother and exspence of welding??
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Old 08 March 2015, 06:35   #14
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There's no need to drill or rivet anything. When you're building the boat, wrap a ratchet strap under the floor section nearest the transom. Buy a rubber mat larger than the fuel tank and place underneath. I used to this with a Zodiac MK IIC GT and the 25 litre steel tank rarely moved.
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Old 08 March 2015, 07:00   #15
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There's no need to drill or rivet anything. When you're building the boat, wrap a ratchet strap under the floor section nearest the transom. Buy a rubber mat larger than the fuel tank and place underneath. I used to this with a Zodiac MK IIC GT and the 25 litre steel tank rarely moved.
By the sound of things the specific details depend on the Model of craft you're talking about...one thing for sure....if it's In a Boat...especially heavy items like Batteries and Fuel need to secured properly.
Even in moderate Seas...If not ...you'll very soon regret it
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Old 08 March 2015, 09:19   #16
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By the sound of things the specific details depend on the Model of craft you're talking about...one thing for sure....if it's In a Boat...especially heavy items like Batteries and Fuel need to secured properly.
Even in moderate Seas...If not ...you'll very soon regret it
Okay, two ratchet straps then!
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Old 09 March 2015, 00:54   #17
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"Rarely moved" ? Not nearly as comforting as "never moved" LOL

Running nylon webbing daisy chains on each side just inboard of the stringers allows for versatile and very secure anchoring for a variety of items.
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Old 22 March 2015, 10:38   #18
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For the OP
I'm a little confused
Did the dealer tell you that your boat didn't come with bow tie down straps or are you just trying to relocate the tank to the rear of the boat. My Fr325 came with straps and the 340 rib I just looked at had straps
The reason the tank is mounted up front is to cut down on bow rise and help the boat plane better
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