I read about this just now and from what I get from it you use it like a first form of attack and follow with a few other products they have to offer.I have purchased some Ektol Cristal
Ingredients
100 g. enthalten: Natriumchlorid 91,4 g, p-Toluolsolfonchloramid-Na 4,8, Natriumcarbonat 3,0 g, Natriumtetraborat 0,3 g, Titriplex III 0,3 g, Kaliumchlorat 0,2 g
Do you think its worth a try?
What have you done or added so far?