getting driftwood to sink faster : a theory - The Planted Tank Forum
 
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post #1 of 7 (permalink) Old 08-23-2013, 05:41 PM Thread Starter
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getting driftwood to sink faster : a theory

So as I am soaking my lot of driftwood. I got to thinking, could the process go a bit quicker? I'm uncertain if there is any real correlation to the amount of tanins released and sink time, but what if there were... I'm loosely basing this on the idea of osmosis. I have no evidence that the tanins in the driftwood have buoyant properties to them, but assuming they did - then driftwood would saturate more quickly if you do a series of 100% water changes to remove the tanins in solution and draw out the tanins from the wood.
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post #2 of 7 (permalink) Old 08-23-2013, 06:57 PM
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I've always thought it had more to do with gasses trapped within the wood's pores. You can certainly get sunken wood that is still releasing tannins.
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post #3 of 7 (permalink) Old 08-23-2013, 07:47 PM
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Problem solved.

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post #4 of 7 (permalink) Old 08-23-2013, 09:42 PM
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I'm with jpappy789, I'm fairly certain its from the water gradually penetrating all the pores and such.

this is why boiling helps to sink it - as the water heats up, the gas trapped in the spaces expands, and some of it is forced out, and then when the water cools, water is drawn into the pore spaces to replace the gas that was driven out.
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post #5 of 7 (permalink) Old 08-23-2013, 09:52 PM Thread Starter
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ahhh, yeah I was unaware of the boiling method. I usually buy malaysian which is fairly dense and sinks readily. Thanks for sorting that out
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post #6 of 7 (permalink) Old 08-23-2013, 10:31 PM
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wood is less dense than water. THat's why it floats. When you soak wood, you allow water to saturate the wood, therefore making it equal to water hence, it will not float.

Attach a rock to the wood will usually work. Some woods are naturally more dense than water of course.


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post #7 of 7 (permalink) Old 08-24-2013, 03:11 AM
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Attach wood to wire. Attach wire to suction cups. Attach suction cups to glass. Wire other wood to wood already attached to glass. Remove wire and suction cups a month later. ::dusts hands::
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