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Review title: If you have hard water forget it!
Product review: If you have hard water the life span of your ShowerTek Fog Free mirror is a few months. The unit leaks so much water that you'll get hard water stains all over the mirror and in the drain hole in back. You'll need to use CLR or other cleaning products designed to remove hard water to get the mirror cleaned up enough for you to be able to see it (as if fogging up isn't bad enough).If ShowerTek could redesign this so that the water circulates and goes back into the shower head instead of all over the mirror it would get 4 stars from me. Until then the next best solution is to buy a water softener...
