Brent from Regina, Canada writes
As this is inside a hotel and by a pool where people will walk barefoot?
30 Seconds Outdoor Cleaner is for outside applications around pools. We would recommend checking directly with the manufacturer to see if can be used inside around one and for calcium. They can be reached at 503-669-1953. Keep in mind this product must be rinsed off thoroughly after application.
Answer last updated on: 05/25/2018
