If urinary crystals are present, mix equal parts of water and white vinegar to make a solution to coat the stoma and the pouch.
(urinary crystals; are; present) (mix equal parts of water and white vinegar; to make; a solution to coat the stoma and the pouch)
urinary crystals mix equal parts of water and white vinegar
are to make
present
a solution to coat the stoma and the pouch