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post #28 of Old 10-04-2013
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Re: Tea Tree Oil Recipe

If you really want to hurt your head, figure out how much you need and why.

* How much air will move thrugh the boat? Seal it up tight and you make condensation worse, ventilate too much and there won't be enough tea tree oil to do a thing.
* Minimum inhibiting concentration. Google it.
* Temperature sensativity of evaporation. Big affect.

I went through the calculations and it's like this; the manufacturer suggestion is rational, BUT it is very easy to be off by 10x if the temperature or ventilation rate is changed. In that case you might get a pretty smell but there is no chance what so ever that it was biologically effective, like not taking enough antibiotic. There is some discussion that low levels can develop super bugs... but they're always sayin' that.

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