I first received SilkBalance when I bought my hot tub. It was great I had super clean water and all I had to do was add Silk and shock to my hot tub every week. After having such great success I thought other products would get similar results. I couldn’t of been more wrong. The water started to smell and I was constantly getting foam whenever I turned on the jets. The only expression is you get what you pay for and it can’t be any more true. I will never use another product for my spa. SilkBalance flat out destroys the competion. Don’t try comparing I did. Save yourself the time and stick with SilkBalance. Clem