I was answering a statement of his about regeneration and used the word regenerate in context.
Originally Posted by Sulphurexcess
System installed ~2007. Water was tested inside house (post conditioning system) about 4 months ago before purchase of house (house actually sat unused for ~ 4-5 months) - came back as good, no coliforms although hardness was at 333 (not surprising as there was no salt in softener at time). end quote and then he said;
Bleach containing backwash runs at midnight, softener salt one runs ~ 2 AM. I am unclear on why sulfur removal tank needs dilute bleach to backwash (unless to kill bacteria). Greensand uses permanganate and not sure about Pyrolox requirements.
I'll grab pics tonight and update tomorrow. end quote and I said;
Greensand and Pyrolox can be regenerated with chlorine. No potassium permanganate with Pyrolox. end of quote.
I see now that I should have also said that the bleach is added not to the backwash but during the slow rinse/brine draw. Because his 'filter' is actually a softener with filter mineral in it.
I guess watersolutions Kinetico salesman Andy didn't know about continuous feed of chlorine as regenerating greensand. Or wouldn't a novice laymen see that as regenerating?
I have never heard of any caution of introducing chlorine after greensand has been regenerated with potassium permanganate as being dangerous.
It would be dangerous if the service water was pink though, because that means there is PP in the water; which it never is supposed to be. That is in itself is dangerous. And it is caused by a problem with the equipment and in this case, although you missed it, that is not going to happen because he has said his filter uses bleach (post #4).