I have always said 'two-fa' because of the vowel followed by a single consonant then vowel makes the first vowel long. (Did I say that right?) Anyway, it took a few times for me to catch the pun in your screen name.

So Tufathepriceofone or Tufatrooper would have been better choices.:)

It doesn't matter where we go, you always have an idea!

Tufaformetogo.

American Heritage Talking Dictionary pronounces it
"TOO fa" -- The calcareous and siliceous rock deposits of springs, lakes, or ground water.