I would add 2 gallons per day of 8.25% store brand PLAIN, UNSCENTED bleach. no splashless, no easy-pour, no "regular" They seem to keep adding secret code names for adding more stuff to the bleach.
Label needs to say unscented, it might say concentrated which is OK. fine print should say 8.25% sodium hypochlorite
Label needs to say unscented, it might say concentrated which is OK. fine print should say 8.25% sodium hypochlorite