I used this product twice and it takes a significant amount of product to produce the fragrance. 3 oz to 4 oz. in a 6 person hot tub. The fragrance is very faint and does not last very long. The next day I found residue on the bottom of the hot tub. Product label says DO NOT ALLOW MATERIAL TO SETTLE ON TUB SURFACES. Do not put the product in without running the hot tub for less than 20 minutes for it to dissolve. The Epson salt (first ingredient) does feel good on your skin and smell is pleasing but faint.
