Waterproof Seal for Wood--with standing water

Greetings all,
I'm stumped. I recently sank a wood box about 2 1/2 feet below ground so I can have a removable 4x4 pole on which to hang a hammock. All was well--the concrete was setting, etc. but when I came out the following morning there was about 1 1/2 feet of water that had seeped in. I can suck it out using a wet/dry vac, but i want to seal it internally to waterproof it. The problem is it will never be dry now. I can suck out all the water and it won't refill for about 30 min-1 hr. Any thoughts?
Thanks!
Matt
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On Mar 31, 3:20�pm, snipped-for-privacy@gmail.com wrote:

congrats you have a shallow well............
you need to use a steel pole even if you have to abandon the current attempt
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Sigh. Well, at least I know if/when the apocalypse comes that I'll have water. The issue is that it's already set in concrete and it's built to juuust fit the 4x4. Anything I can slide in there or a latex coating I can paint in? I looked all over creation for a pre-made steel or aluminum tube that would fit the 4x4 before building the wood frame but no dice...
Thanks for your help!
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Sigh. Well, at least I know if/when the apocalypse comes that I'll have water. The issue is that it's already set in concrete and it's built to juuust fit the 4x4. Anything I can slide in there or a latex coating I can paint in? I looked all over creation for a pre-made steel or aluminum tube that would fit the 4x4 before building the wood frame but no dice...
Thanks for your help!
Use a PT1 treated 4x4, which is treated for ground contact. Since you're presumably going to be removing it when the hammock is not being used, it will have a chance to dry out and should last a long time.
Alternative -- a good metal shop can make a post to your dimensions that will fit the opening -- but I think just using PT lumber will fit your requirements
Also -- Where is the water coming from? If you're in Florida, I understand it filling in the hole, but elsewhere you might want to see where the water is coming from -- downspout, ruptured irrigation line, leaking main or drain line, etc., and if the water is not from natural ground-water sources you can fix the problem there. --
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Thanks for all your help! The lawn is enclosed in a concrete wall structure and I think it just sucks up water and doesn't drain effectively. Also, we're on a downslope with certain portions (including basement) below ground level. The ground tends to saturate quickly. As you might imagine, there's a whole sump project in my future...
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What kind of wood is your 'wood box' made out of? Most 1x PT lumber isn't rated for ground contact - it isn't treated the same as 4x4 or larger lumber. It will eventually rot away if in constant contact with water. Maybe not as fast as un-treated, but eventually.

congrats you have a shallow well............
you need to use a steel pole even if you have to abandon the current attempt
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