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Old 11 April 2016, 19:08   #11
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Plastic Drums etc will take almost as much abuse as your fake inflatable though, compared to inflatable marks which then get dragged across concrete floors because they are awkward to carry and so get damaged and need replaced... So may be long term advantage.

Oh and I forgot - plenty of small puddles use these:
4 X 25L 25 Litre Plastic Water Containers Carrier Food Drum Jerrican | eBay
Using the handle as the attachment point for ground tackle.
Quite small but size not seeming an issue. What sort of size speakers and battery?
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Old 12 April 2016, 03:26   #12
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The speaker is a the size of a siren from a house alarm bell box, and the battery is also a house alarm backup battery.

Used to have three of these...
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We now only have one that is 100% and the other has holes in the air bags, and the third has been 'borrowed'

These have inflatable floor and then tent poles to create the shape and a big zip so they can store the battery inside.
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Old 21 April 2016, 13:28   #13
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I now have three barrels with screw lids so the electronics can be added and then removed for charging.

No idea on how to get them floating up right though without a load of weights.

Any ideas?

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Old 21 April 2016, 14:21   #14
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We use barrels roughly that size with eyes on the bottom and chain. 3m 6mm of chain is roughly enough to make it "sit" up. Couple of sandbags in the base might make it behave more
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Old 21 April 2016, 14:38   #15
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Originally Posted by SteveHall View Post
I now have three barrels with screw lids so the electronics can be added and then removed for charging.

No idea on how to get them floating up right though without a load of weights.

Any ideas?

IAttachment 112112
Steve

Anchor down and use a length of bungee cord to the barrel that will compensate for rise and fall of tide etc and always under tension length dependant on on water depth and how accurate you want the position.

Cheers
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