Pluming or Plumming: How To spell?
The word Pluming is misspelled against Plumming, a noun meaning "The operation of finding, by means of a mine dial, the place where to sink an air shaft, or to bring an adit to the work, or to find which way the lode inclines."
Plumming has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings plu & ing which should not be misspelled with single 'M'
Wrong Spelling:  plu-m-ing  Correct Spelling:  plu-mm-ing 
Check more misspelled words of Plumming to spell it correct.