397
people found this helpful, as of 2023
ranked #53,744 most helpful
out of 571,544,897 reviews
★☆☆☆☆
Not as good as the old product
Some of the reviewers are commenting based on their old bottle of the product. Just like old bottles of The Works and Snowbowl. They used phosohoric acid. Great cleaning chemical! New bottles of these products do not have this chemical. New bottles use a dilute hydrochloric acid. Much less effective. Better off going to Grainger and getting straight phosphoric acid and enjoy its superior cleaning capabilities.
the product in question
Zap Professional Restorer As seen on TV hard water stains, calcium buildup 16oz
3.7★ · 71 ratings, as of 2023