It works. I don’t know the exact science, and I’ll do my best to explain some of it below, but the biggest thing you should take away from this review is that I’ve been using the Card on Guard tube in my pool for over a month, a little longer actually, and it works. While..
I’m going to try (and review) the Card on Guard tube in my pool
Not too long ago, I covered the Card on Guard Tube for one of Techigar's tech blurbs. The idea is to help reduce chlorine in pools and spas by up to 50% or more. That's because, while we still use chlorine in pools to sanitize water, those chemicals aren't ideal for our bodies. Using natural..