Hydrostaticaly or Hydrostatically: How To spell?
The word Hydrostaticaly is misspelled against Hydrostatically, an adverb meaning "According to hydrostatics, or to hydrostatic principles."
Hydrostatically has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings hydrostatica & y which should not be misspelled with single 'L'
Wrong Spelling:  hydrostatica-l-y  Correct Spelling:  hydrostatica-ll-y 
Find more incorrect spellings of Hydrostatically to spell right way.