I have been using Le Natural Spa, http://www.naturelspa.com/ for over
4 years now and it works as advertised. (Some damn good snake oil). I
use a bottle about every 3-4 months, but I also use a very good Ozone
Ozone with the Enzymes is a great combo. I never use any other
chemicals. Well, all most never, in the rare cases where we have
numerous people in the tub such as a party. It is best to throw in
some non-chlorine shock to help the little critters out. The Enzymes
convert the oils and dead skin into CO2 and dust on your filter. If
two many people use the spa at one time it will take the enzymes a few
day to devour all that matter. In that case its best to hit it with a
couple of scoops of NC Shock.
However, with normal bather load we do nothing but enjoy the spa. A
real fresh smell (hint of Joy dishwashing soap, when the smell is gone
we add a bottle) no foaming and crystal clear water. No issue's what
so ever, simply add a bottle every 3-4 months. When our original Del
Eclipse ozone broke, we got by with just the enzyme for about 2
months. Without ozone the enzyme just doesn't last as long. We don't
adjust ph, test anything, nothing, ya its that good! We change the
water only once a year, and use the orange clean product.
We tried Eco One Enzymes, ass covering literture, and nice carry case.
Their kung fu is weak, maybe a month or 2 and it was no longer
working. Stick with the Le Natural Spa. Bottom line is it works and
you are not sitting in a chemical soup. Highly recommended.