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Discussion Starter #1
We have a very nice aluminum RIB with a double floor and a locker in the bow. I have the fuel tank in the locker (among other things) with the fuel hose running aft to the ON under the sole ... which is terrific to have the sole uncluttered. The problem with this is when water from rain of several days fills the RIB... it can be even 4 or 5 inches deep... a lot to de water. But worst of all the locker floods too and becomes a very wet locker!

I want to create a dam by place a channel scribed to the V or the hull where the after side of the locker is. It has an opening to pass the hose under the sole obviously. The hose would then go up over the dam which would be 5 " tall and made from a GRP channel.

My question is... how should I attached this channel to provide a water barrier? My first thought was bedding its edges in silicone. Then maybe epoxy... What about butyl rubber? I can "build up" silicone... as appearance is not an issue.. and it's probably easier to work with than epoxy. Butyl may not adhere.

Suggestions...
 

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My go to would also be 4200. I used exactly that to do something similar in the bilges of the mother ship. I think it worked. It is a bit messy looking.

I have a suspicion, especially with your hose penetration, this may be a frustrating endeavor. If any water gets past, or in via the seat, it probably won't drain back at all. I have the exact same dinghy setup, but she lives on davits, with the plug open. If I recall, yours lives at a mooring? Too bad there wasn't a dock to pull it up on and open the plug.

I see little contained bilge pumps for dinks too, with tractor batteries and some with mini-solar panels. How about a canvas cover and some interior bows?
 

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Discussion Starter #5
My go to would also be 4200. I used exactly that to do something similar in the bilges of the mother ship. I think it worked. It is a bit messy looking.

I have a suspicion, especially with your hose penetration, this may be a frustrating endeavor. If any water gets past, or in via the seat, it probably won't drain back at all. I have the exact same dinghy setup, but she lives on davits, with the plug open. If I recall, yours lives at a mooring? Too bad there wasn't a dock to pull it up on and open the plug.

I see little contained bilge pumps for dinks too, with tractor batteries and some with mini-solar panels. How about a canvas cover and some interior bows?
PITA to motor a filled up dink to an available dock.... and lift it up to drain.


I have a transom mounted gusher but this too takes quite a lot of effort to get all that water out.

Seat lid detail prevents water from getting into locker. It has a continuous weep channel.... the locker has a cushion which also sheds and blocks rainwater.

I am thinking about a small solar panel, small motorcycle AGM and a small bilge 12v pump,, batt in locker... wiring through bilge.

I could open the drain and hang the RIB from a halyard.
 

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I am thinking about a small solar panel, small motorcycle AGM and a small bilge 12v pump,, batt in locker... wiring through bilge.
This is the best solution. Forget trying to make a dam - you will only pay for it on the other side by the locker not draining when it gets water from another way. We have an electric start outboard, so we have a battery anyway. Unbelievably, it took me 2 years to realize I could just add a bilge pump and always have a dry dinghy.

It is blissful.

Mark
 
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