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Wood inside water


I am planning to build a fish pond, and as a precaution against kids falling in I wish to build a wooden floor submerged 10cm beneath the surface.

 


My questions are:


Can wooden structure survive intact submerged underwater? (it must bear human weight)


If not wood, what other options can prevent people from falling in?

 


And a related question, can I use wooden structures inside soil? I know that wood decays when it is below ground, but perhaps there is some pre-treatment that can prevent this?

 


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First I must say that it's good that you think about the safety issue before you start building the pond!

Wood submerged in shallow water will decay. Wood preserves only in very deep water, with very little oxygen. I would also advise against using wood under the ground, for the same reason. I think there are treatments that will slow the decay, but I don't know how effective they are and I know that I wouldn't want these materials in my back yard where my children play.

The most common solution is grilles or meshes made of plastic or steel. Take a look at the advice part of this page for more information.

 
Posted 2007-05-09T15:18:46Z
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Thanks, that was exactly what I wanted to know, the link is very informative :)
Posted 2007-05-10T06:59:36Z
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For wood that will have ground contact, use pressure treated available at Home Depot or a lumber yard.  Make sure it says ground contact as there are 2 different levels of treatment.  The wood is pressure treated with a preservative called ACQ or alkaline copper quat. There is another method of treatment which eludes me.  But it's copper base anyway. This is an improvement over the arsenic based materials on the market several years ago.

I would not use this in a fish pond as I believe it is probably toxic to the fish but I would ask someone in your pet store.  Perhaps you can construct a frame of plastic.  You can use PVC pipe (Home Depot) as a support.  ABS pipe is black (plumbing supply) and would be better for appearances, 1.5" diameter pipe with T's or el's to connect would work.  Pretend they're like tinkertoys.
Posted 2007-05-25T00:35:05Z
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please do not use wood in a pond!  keep in mind that what we live in is a very big pond too.  and i am sure what some have done to you and me.  get a book on asian ponds. japan ponds i have seem to have the best way to treat the fish and keep them alive.  other than putting a fence around the pond i dont know anyway to keep the little ones out.  and at 10cm's of water one can still become one of the past people.

Posted 2008-05-18T06:13:13Z
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Rated #4 out of 4

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