Is Rid-X really necessary for a septic tank?

[Ombligo]

I toss some in once a year just because there are any multitude of things that can upset the bacteria balance. Like others have said - antibiotics is the biggee, but just because you don't flush pills doesn't mean they are there. If your taking them while sick and vomit into your toilet - you may have just dumped a bunch into your septic. Wash the counters with anti-bacterial soap.. there's some more. Another issue is cooking oil - it can create a film in the septic.

I've lived with my septic for 25 years - pumped out once, about 5 years ago. Even then the guy said it wasn't needed. I must be something right.