Sorry for the double post, I ran out of time to edit while I was bashing my head on the desk.

Using some types of antiseptics (biguanidine) may be why you get results against some things when used in conjunction with the quat.

The chemicals compound I was talking about was just regurlar old sodium hypochlorite. It may take longer on some types of bacteria than some antiseptics, but it kills absolutly every type. So in the end I believe it is more cost effective.