The word Potablenes is misspelled against Potableness, a noun meaning "The quality of being drinkable."
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Potableness has double 'ss' in the end mispronounced as 's'
Remember double 'SS' appears in the end of this word which should not be misspelled with single 'S'
Wrong Spelling:  potablene-s 
Correct Spelling:  potablene-ss 
Find more incorrect spellings of Potableness to spell right way.