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I'm considering installing one of the Moeller fuel tanks in my 13'. The long slender type, and best i can tell there is a 14 gallon and 15 gallon option, the difference being a height of 6" and about 7 1/2" respectively.

I'd like advise from anyone who has installed one of these. Which size fits best? How did you secure it to the hull or otherwise?

Our boat sees a lot of sand, so 'm inclined to go with the 14 gallon, so i can mount the tank on top of some shims to allow sand to be washed under the tank.

Thank you for your thoughts.

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Moeller makes a couple of different hold-down kits. one is a nylon strap type and the other is stainless steel brackets. I used the stainless steel brackets for the under seat tank on my sport. You can google Moeller gas tank hold downs.

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Thank you for your reply. I'm curious, did you fasten directly into the hull with screws?

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I have just bought a 15 gal. Moller tank for a 15 ft SS I am restoring. I plan to mount it on 3/4" inch strips that are glued to the bottom. Do not want to drill any holes if not necessary.

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Yes, I screwed the hold down brackets directly to the deck using 5200 as bedding for the bracket and to waterproof the screws. My 13 is a 1972 also and with the shape of the deck there is plenty of room under the center of the tank to wash through sand or whatever else in in your hull.

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I do not think I would ever glue down a piece of hardware that would require maintenance or possible removal down the road. I think the damage to the deck removing a glued object that has a real bite is far worse than some maybe water penetration from a properly installed bracket. My $0.02.
gchuba

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Gchuba, if you ever have the opportunity, without having to pay $12 for a toothpaste sized tube of 5200, do a little experiment. Install some kind if fitting to some other object with the 5200. Cover it with water and let it soak a week or two (5200 cures faster under water). I think you'll find that the bunk about 5200 being permanent is just untrue. I've removed and then rebedded objects bedded in 5200 many times. Yes it's harder to remove than 4200 or bathroom caulk or Elmer's glue but by contrast, it is a much stronger and longer lasting compound than each of those things is to the next one of those things. I wouldn't use anything else in an area prone to be constantly wet.

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Wing, my reference was to gluing, not bedding a piece of hardware and was directed to TomC2, who did not want to drill into the deck. I would consider the use 4200 or 5200 as "proper installation". I would consider the use of "Gorilla Glue" as improper.
gchuba

ps Wing, thank you for your reply for "Water in Hull"

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Leo,

I believe that you will need to measure your boat and determine if you can fit the 7 1/2 inch tank below the seat and still access any fill tubes. One gallon either way will not make much of a difference in range.

I assume your seat is mounted in the standard location and not on top the side rails

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thanks everyone, I haven't pulled the trigger on this project yet, but the information will come in handy. Thanks again for your thoughts.