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Discussion Topic: Saline barrier _ trend or coincidence
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expilot |
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And today's tide here at Potter is even higher than yesterday's with another three hours yet to flood. The Thurne is overtopping the flood defences in the usual places and, doubtless, the IDB pumps will be pumping it from the marshes back into the flooding river!
"There are old pilots. There
are bold pilots............."
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Paladine |
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The output of some of these pumps can be quite ferocious. Perhaps the outfall pipes could be fitted with mini hydro-electric thingies, to offset the cost of the electricity they use.
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Hylander |
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Harnser Trainer
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Dilligaf , where is The Mill pictured please? Not sure I can place it.
Women dont nag they just
point
things out...
M
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Dilligaf |
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It's tidemill at woodbridge on the Deben, at normal low water it's mostly a sea of mud there with a trickle down the middle, the marina behind the mill has a cill to keep enough water in so boats can stay floating.
Dave.
Formerly 'LeoMagill'
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MandA |
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I still do not understand how the barrier keeps the saline out as the water goes around the ends of the barrier and the water is always the same level each side of the barrier perhaps someone could enlighten me,we moor in wood,s marina.
Adrian.
MandA
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ruby |
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Hi Adrian
I also wonder how it works, noone I speak to seems to understand the science .
I do think it restricts some water though as the marina at our end never seems as high as the river itself with the barrier in place
The other thing I don't understand is where are all the fish resting . I have placed fish finders and cameras under our boat when the barrier is in place and always seen diddly squat , but they may of course be in another basin
Graham
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Greybeard |
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Because fresh water is less salty and less dense than water from the ocean, it floats on top of the heavier seawater.
my appearance is down to me, my attitude is down to you.
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Bluebell |
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I also moor in HW basin, and have fished while the barrier is up without getting a bite - i assume the fish must have gone upriver under the bridge… 
With kind regards
Jim
was Bluebell now Chiltern Lady (an Aquafibre Opal built by Fineway Cruisers Hoveton)
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ruby |
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Hi Jim
The barrier is only there because the EA say that many thousands ( my memory says at least 100k but I cannot be sure of that )of fish shelter in the marina to keep away from the salt in the river. Without the barrier those that escaoe from the river into the marina would eventually be overwhelmed by the salt.
I am intrigued as I have never seen any evidence of many thousands of fish resting in the marina.
Graham
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Paladine |
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Mudplug Juggler
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https://www.gov.uk/government/news/thousands-of-fish-saved-from-salt-water-during-tidal-surge
There was an EA-liveried van in the HW/Latham car this morning.
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ruby |
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A quick update the barrier was closed again last week and still hasn't re opened.
.
They are hoping for tomorrow
This is not good news for the user's of the marina but even worse for the inhabitants of the thurne which have been trying to survive salt water for over a week
Graham
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Jan-05-2022 @ 1:01 PM
