I am quite familiar with the use bacteria to eat oil spills. What I am saying is that using chemical on orchids to kill bacteria may not be the best idea.
I often design things that take a little work just so I don’t have to do repetitive tasks after. I am a retired engineer and hold patents on biologically treating waste treatment plant waste.
The microfeed system I have designed for my orchids will hopefully eliminate maintenance. All I need to do now is little more that push a button on my iPhone, or set it on auto. Now that the bacteria culture is established it only requires keeping the culture fed every couple of weeks, aerated, and heated. All it took was adding select bacteria to seed it to start. Water level is automatically maintained in the culture tank from rain water collected in the gutter over it. I do add a little Dolomite now to keep the pH of the culture tank from getting too acidic and encouraging black mold from the roof to grow.
It is far from a proven concept, but I am pleased with the results so far.
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