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Impregnating a tree stump for burning out?
On 22/03/2014 17:41, Lobster wrote:
I've got an old cherry tree stump which I really want rid of. It's probably about 10" high by 15" across, and the problem is that it's in an awkward position at the foot of a banked area, and surrounded by paving stones, so would be very disruptive and difficult to dig out. It's inaccessible to a tree stump grinder (other than maybe something hand- held). Burning it out seems the way forward, and I've tried several times (over years), burying the thing in burning coal. Trouble is the stump doesn't really burn much as such; it just chars over, and has got quite dished on top, but there's a lot more to go. Anyway, it occurred to me that maybe I could try again this summer but first impregnate the remaining timber over a period of time (maybe honeycombing it with a drill first) to encourage it to burn properly. Anyone tried this? What would be good to use, that wouldn't just evaporate off? I'm not after getting the whole thing out - if I just get the stump below ground level and cover it with a plant tub or something, that would be fine! Or any other constructive ideas!? You can get angle grinder disks which are similar to a proper stump grinder, basically a ring of chain-saw chain wrapped round a hub. Sometimes used for "carving". Drill a lot of parallel deep holes with a big (say 25 mm) auger to remove a large proportion of the material? I have used a 1 inch chisel in a 4 kg SDS drill to attack similar things in the past. As another poster said, saltpetre (potassium nitrate) is a good oxidising agent if you can saturate the stump with it before applying fire. Potassium permanganate is another possibility, perhaps easier to obtain. When trying to purchase such things in kilogram quantities, suggest blacking up, put on false beard, and speak with funny accent. (Not). |
#2
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Impregnating a tree stump for burning out?
In message ,
newshound writes As another poster said, saltpetre (potassium nitrate) is a good oxidising agent if you can saturate the stump with it before applying fire. Potassium permanganate is another possibility, perhaps easier to obtain. When trying to purchase such things in kilogram quantities, suggest blacking up, put on false beard, and speak with funny accent. (Not). I recently had a need to produce lots of smoke and Potassium Nitrate was easily and cheaply available from suppliers on Ebay. As far a removing stumps, I drilled lots of 1" dia holes about 6" into a 12" dia stump a few years ago and filled with Pot' Nitrate. I all but forgot about it for 3 or 4 years and when I went back to it it just pulled out of the ground , having rotted below the surface. -- Bill |
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