H2O That Is Prone to Causing Limescale
This page is the CodyCross answer for the clue below from Spa Time, Group 818, Puzzle 4 (Skin Kneading).
Question is: H2O That Is Prone to Causing Limescale
and the answer is: HARDWATER
Word Meaning:
HARD WATER — (chemistry) Water with a high concentration of dissolved minerals, especially calcium, making it difficult to lather with soap.
Definitions from Wiktionary.