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Old 18 October 2005, 12:47   #1
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elephants trunks

should the trunks be up or down when the rib is in normal use any suggestions welcome
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Old 18 October 2005, 12:58   #2
DGR
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I only put mine down if it's rough and I know I'll be taking on water - otherwise I let the auto bilge pumps look after any splashing that does get into the boat.

If you don't have any bilge pumps, then I'd say yes - unless you are stationary, because 'cos they usually leak back in!! - just to clear any water that does come in.

Hope that's useful!!

D...
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Old 18 October 2005, 13:06   #3
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If you have a lot of spray coming in the boat more than can be coped with by the bilge pump then leave them down when running. Many drivers do this as a matter of course. What happens when you stop is a different matter though. Depending on the design of transom, trunk installation and where in relationship to the water line the through transom holes are, is whether the boat floods at rest with them down or not. If the boat floods at rest with them down then I personally would leave them up until you need them. You might forget they're down and come back to a burnt out pump and a knackered battery.

Another issue is that some trunks can foul the prop when in a tight turn, they are that close! So, these could only be operated in a straight line. To bail the boat, you would only want to travel straight anyway! So, if they might foul the prop in normal operation whilst down, then again, leave them up until required.

Hope this helps.
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Old 18 October 2005, 13:34   #4
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I leave mine down all the time even when the boat is on a mooring. Normally I get very little water returning into the boat through them, although one night I came back and the boat was pretty much full. This seems to be casued by bits of sand/crap getting into the trunk and holding it open slighty.
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Old 18 October 2005, 13:59   #5
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Ours normally floods quite easily , so only put them down when necessary , although , nearly lost a mobile phone down them once!!!!
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Old 18 October 2005, 14:08   #6
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We keep ours up all the time - seems superfluous - but perhaps that is my helming . Only used it once after a major stuff.

Useful for collecting bits which fall off the boat though!
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Old 18 October 2005, 18:59   #7
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cheers guys and girls .i normaly leave mine up unless needed but was told by the man who owns the boat shop leave it down ,its never fouiled the prop but i havent checked if it could .ive got a elec bilge pump but its on a switch not auto but thats ok. not realy noticed if it lets back in as i keep it up [pardon my expresion].boats quite dry unless i make a big mistake so i suppose its trial and error[prop,leeks ect]no set way is this right stedj
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Old 19 October 2005, 03:19   #8
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Quote:
Originally Posted by stedj
,its never fouiled the prop but i havent checked if it could .
I think that might be worth checking stedj before you hit the seas.

(Oh I see. You wrote that in response to hard1's advice.)

missus
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