"DaVinci CSI, LLC" Mermaid Toilet Cleaner

I purchased this and when I read the instructions, there is a statement on the front of the instructions, ("Not septic tank safe."). Well, guess what, we have a septic tank. Needless to say I was very disappointed. This item is completely, tightly shrink wrapped, for shipping, and the dispensing hole has a cap on top that is to be removed before placing in the tank.