Orchid doctor

HYGROMETERS: Wet and Dry Bulb

Culture Orchid Doctor

by Robert M. Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin about 3 years ago.

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One deg. F. depression on the wet bulb equals 5% drop in humidity from 100%; if the wet bulb reads 62 deg. F. then the relative humidity is 100 less 15 or 85%; keep the water supply in the bulb adequate and replace the wick when rotted or polluted with algae. OR75-341
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